Common COVID-19 Misconceptions Linger Three Years Later

It’s been three years since the first cases of COVID-19 were diagnosed in the U.S., but our concierge primary care doctors in Jupiter are still hearing comments from friends, acquaintances, and even some of our patients that are just plain incorrect.

For instance, we were talking to someone the other day whose wife was very sick with COVID-like symptoms: body aches, severe cough, fever, chills, and so on. When we asked if she’d been tested for COVID-19, he replied, “No, she’s already had it.”

We happen to know that her previous infection was a year ago when the delta variant was the predominant strain. Today, it’s the XBB.1.5 subvariant of the omicron variant. And as with the flu, which is also a virus, it is possible to get COVID-19 more than once, even if you’ve been vaccinated (which she hasn’t).

The problem with his not knowing this is that she could have received the antiviral pill Paxlovid or similar medication early on to lessen her symptoms, instead of spending over two miserable weeks in bed. By the time we talked, it was too late—you must receive the treatment within the first five days.

Understandable Confusion

Of course, much misinformation spreads wildly on social media. And it’s not just misinformation, but dangerous, outright fabrications. For example, Dr. Anish Agarwal, an emergency physician in Philadelphia, recently told the New York Times he’s still seeing patients who believe what he called “crazy” claims that the COVID vaccines “will insert robots into their arms.”

“We battle that every single day,” he told the paper.

We believe our patients are savvy enough to discount such craziness and hope they will check with us if they read something like this that concerns them.

But many of the misconceptions we hear arise because people are busy and don’t have time to keep track of all the news about the coronavirus, or they make assumptions based on misunderstandings like our acquaintances did.

So here’s a capsule summary of the facts we know about COVID-19 and the vaccines. Again, we hope you’ll contact us with any questions.

COVID-19 Facts

Yes, COVID-19 is still a threat, in some regions of the country more than others, especially the Northeast and Midwest. Hospitalizations, including here in Florida, have declined in recent weeks. But according to an NBC News tracker, the U.S. is still averaging 524 deaths from COVID-19 every day, including 63 Floridians.

And of course, hundreds of thousands of Americans are still dealing with the devastating effects of long COVID, and while we’re learning more all the time, we still don’t have a cure or effective treatments.

Despite a recent study that seemed to question the effectiveness of wearing face masks in public places, numerous studies have found they do work, not only to help prevent the spread of COVID-19 but also to protect the wearer.

The most recent study, conducted by the California Department of Public Health and published in the CDC’s journal Morbidity and Mortality Weekly Report, showed that those who reported wearing masks were about half as likely to become infected than those who didn’t. The analysis found the odds were even lower for those who reported masking “all of the time” vs. “some” or “most of the time.”

Other studies conducted over the course of the pandemic showed infection reductions from wearing well-fitting masks as high as 70-80 percent.

Vaccine Facts

COVID-19 vaccines are safe and effective. Adverse events connected with the vaccines are infrequent:

  • Myocarditis (inflammation of the heart muscle) associated with the mRNA vaccines occurred in 1,626 people out of 192,405,448 participants in one study.
  • Thrombosis (blood clots) associated with the Johnson & Johnson vaccine occurred in four out of one million people who received the vaccine.
  • And cases of both myocarditis and thrombosis were higher in those who contracted COVID-19 and hadn’t been vaccinated.

Vaccines often don’t prevent minor or even severe symptoms, but they do reduce the chance of serious disease and death. A research report by the Commonwealth Fund estimated that vaccines prevented 3.2 million deaths and 18.5 million hospitalizations in the U.S. between December 2020 and November 2022.

A primary series (two doses of the mRNA vaccine) plus a booster dose is more effective than a primary series alone; a second booster dose increases protection even better, and so on, because vaccine protection against serious illness begins to wane within four to five months after inoculation. 

Pfizer-BioNTech’s newer bivalent vaccine is more effective against both the original strain and the newer omicron and XBB variants than the original vaccine, according to a November 2022 study.

One 2022 study also found that vaccination reduces the risk of developing long COVID.

Vaccines also help to prevent transmission of the virus, as a November 2022 study found. In January, Forbes reported that those who had received the vaccine were 24 percent less likely to infect close contacts than those who were unvaccinated; those who had been previously infected were 32 percent less like to spread the virus; and those who had been vaccinated and previously infected were 41 percent less likely to transmit the virus. 

Keep in mind that even after three years of experience with the novel coronavirus, there’s still much we don’t know. But what we do know is based on solid, extensive, worldwide research, not on wild supposition or hearsay passed along on the Internet.

Here’s to Your Heart Health

In recognition of American Heart Month in February, our primary care concierge doctors in Jupiter thought we’d share some facts with you about your heart, and what you can do to keep it healthy.

Surprising Heart Facts

First, from the Cleveland Clinic, here are a few interesting things you may not know about your heart.

Your heart is about the size of your two hands clasped together.
It beats 100,000 times a day.
The beating sound is the clap of valve leaflets opening and closing.
A woman’s average heartbeat is faster than a man’s by almost eight beats a minute.
Every cell in your body gets blood from your heart, except for your corneas.
The heart pumps blood through 60,000 miles of blood vessels.
A normal heart pumps approximately four tablespoons of blood with each beat.
Each minute, your heart pumps 1.5 gallons of blood.
Your heart has its own electrical supply and will continue to beat when separated from your body.
Heart cancer is very rare because heart cells stop dividing early in life.

About Heart Disease

Heart disease is the leading cause of death for men, women, and people of most racial and ethnic groups in the U.S. About 697,000 people in the U.S. died from heart disease in 2020 (the most recent figures available). And every year about 805,000 people in the U.S. have a heart attack; over 600,000 of those are first heart attacks.

According to the Centers for Disease Control and Prevention (CDC), the term “heart disease” refers to several types of heart conditions.

The most common type of heart disease in the U.S. is coronary artery disease (CAD), which affects blood flow to the heart. Decreased blood flow can cause a heart attack. In 2020, about 20 percent of deaths from CAD occurred in adults below the age of 65, known as an “early cardiac event.”

Common Symptoms of Heart Disease Include:

Heart attack: chest pain or discomfort, upper back or neck pain, pain in the jaw or throat, indigestion, heartburn, nausea or vomiting, extreme fatigue, upper body discomfort, dizziness, a cold sweat, and shortness of breath
Arrhythmia: fluttering feelings in the chest (palpitations)
Heart failure: shortness of breath, fatigue, or swelling of the feet, ankles, legs, abdomen, or neck veins

The Cleveland Clinic’s Dr. Curtis Rimmerman, a cardiologist, emphasizes that symptoms of a heart attack can vary widely, but adds that the discomfort is usually unrelenting, typically lasting five minutes or more.

“Regardless of where the pain is, people typically can’t find a position that relieves the pain,” he says. “Nor do they find relief by taking a drink of water, popping antacids or taking deep breaths.”

That means it’s time to call 911, he adds.

Increasing Risk

Unfortunately, about one in every five heart attacks are “silent”—that is, the damage is done, but the person is not aware of it.

That’s why it’s important to know your risk factors and what you can do about them.

About half of all Americans (47 percent) have at least one of the three key risk factors for heart disease: high blood pressure, high cholesterol, and smoking.

In addition, several other medical conditions and lifestyle choices also put people at a higher risk for heart disease, the CDC reports, including:

diabetes
overweight and obesity
unhealthy diet
physical inactivity
excessive alcohol use

In addition, a 2021 study published in the journal Heart found that those who used illicit substances, including amphetamines, cocaine, and cannabis, were far more likely to experience an early cardiac event than those who didn’t.

And another study, published in the Journal of the American Heart Association (AHA) in 2020, found that the chances of developing cardiovascular disease (CVD) were 19 times higher in women who consumed one or more sugary drinks a day. This included everything from fruit juices to soft drinks (not diet) to coffee with sugar.

Lowering Risk

Some risk factors cannot be controlled, such as age or family history of heart disease, but you can take steps to lower your risk by changing the factors you can control.

Have your blood pressure, cholesterol, and triglycerides checked regularly.
Ask us whether you should be tested for diabetes.
Quit smoking.
Limit the alcohol you consume to one drink a day.
Learn how to manage stress levels by finding healthy ways to cope with stressful events.

In addition, there are two other ways that have been shown to dramatically reduce your risk for heart disease.

The first is exercise. According to the Cleveland Clinic, regular moderate-intensity exercise for at least 150 minutes is the single most important—and free—key to heart health.

The second is diet, specifically a plant-based diet. This doesn’t necessarily mean going totally vegetarian, just making plant foods vs. animal foods the main component of your diet.

“I’ve seen people whose diabetes, angina, or blood pressure goes into remission [on a plant-based diet],” Andrew Freeman, a cardiologist and the co-founder of the Nutrition and Lifestyle Work Group at the American College of Cardiology, told The Washington Post.

“I’ve seen autoimmune diseases go away when you cut inflammation,” he said. “The best way to do that is with a plant-based diet, and people get better.”

Is a Neti Pot Right for You?

Because our concierge primary care doctors in Jupiter have been receiving more questions about the effectiveness of Neti pots for various sinus conditions, we thought we’d take some time to explore their usefulness—and to reiterate a special warning about their use.

What is a neti pot?

Neti pots are one type of nasal irrigation device that use a saline or saltwater solution to treat congested sinuses, colds, allergies, and congestion from flu and COVID-19.

These devices include the teapot-looking container that originated with Ayurvedic medicine in India, along with bulb syringes, squeeze bottles, and more expensive motorized pulsed water devices.

In general, these devices all introduce salt water (saline) into the nostrils to flush out mucus, allergens, and bacteria. The saline helps thin the mucus, making it easier to expel.

The U.S. Food and Drug Administration (FDA) says that such saline rinsing “can remove dust, pollen, and other debris, as well as help to loosen thick mucus. It can also help relieve nasal symptoms of sinus infections, allergies, colds, and flu.

“Plain water can irritate your nose,” the agency says. “The saline allows the water to pass through delicate nasal membranes with little or no burning or irritation.”

How do they work?

 “There are various ways to deliver saline to the nose,” says Eric A. Mann, M.D., and Ph.D., a doctor at the FDA.

“Nasal spray bottles deliver a fine mist and might be useful for moisturizing dry nasal passages. But irrigation devices are better at flushing the nose and clearing out mucus, allergens, and bacteria,” he says.

Information that comes with each device can give more specific instructions, but in general, the FDA says they all work basically the same way:

  • Leaning over a sink, tilt your head sideways with your forehead and chin roughly level to avoid liquid flowing into your mouth.
  • Breathing through your open mouth, insert the spout of the saline-filled container into your upper nostril so that the liquid drains through the lower nostril.
  • Clear your nostrils. Then repeat the procedure, tilting your head sideways to the other side.

While some people experience immediate relief from their symptoms, for others it may take a few days to begin breathing more freely.

And experts caution that—like oral decongestants—nasal irrigation devices are simply a treatment for a symptom, not a cure for the underlying cause.

Some Cautions

Although the FDA says that neti pots and other similar nasal irrigation devices are generally safe, they may not be right for everyone. If your immune system isn’t working properly, the agency advises checking with your healthcare provider before using any nasal irrigation system.

A few users report ear discomfort, nasal irritation, a burning or stinging sensation, and even nosebleeds. But in general, the FDA considers them safe to use, even for children aged two and up.

The most significant warning, however, concerns the type of water used in them. 

“Tap water isn’t safe for use as a nasal rinse because it’s not adequately filtered or treated,” the FDA cautions.

“Some tap water contains low levels of organisms—such as bacteria and protozoa, including amoebas—that may be safe to swallow because stomach acid kills them. But in your nose, these organisms can stay alive in nasal passages and cause potentially serious infections.”

They can even be deadly, the Centers for Disease Control and Prevention (CDC) reports. Since 1993, there have been at least 70 cases of “brain-eating” amoeba infections in the U.S., which are “almost uniformly fatal,” the agency reports.

Safe Use

The safety of neti pots and other such nasal irrigation devices—including the motorized versions—depends on the type of water used and how meticulously the containers are cleaned after each use.

The FDA lists the following types of water as safe to use for neti pots and similar devices:

  • Distilled or sterile water, which you can buy in stores. The label will state “distilled” or “sterile.”
  • Boiled and cooled tap water—boiled for three to five minutes, then cooled until it is lukewarm. Previously boiled water can be stored in a clean, closed container for use within 24 hours.
  • Water passes through a filter designed to trap potentially infectious organisms. The CDC has information on these filters here

To safely use and care for your device:

  • Wash and dry your hands.
  • Check that the device is clean and completely dry.
  • Prepare the saline rinse, either with the prepared mixture supplied with the device, or one you make yourself.
  • Follow the manufacturer’s directions for use.
  • Wash the device, and dry the inside with a paper towel or let it air dry between uses.

Does it Work?

Most people who use neti pots to relieve nasal congestion and allergies swear by them, especially if they want to avoid using over-the-counter decongestants. 

“Just about any condition that causes irritants and mucus to build up inside the nose will benefit from saltwater rinsing with a net pot or similar device,” Richard Orlandi, a nasal and sinus specialist and professor of surgery at the University of Utah Health in Salt Lake City, told Consumer Reports (CR).

“These include allergies, nonallergic nose irritation, colds, and sinus inflammation and infections,” he said.

The World Health Organization (WHO) reports that rinsing your nose with saline does not prevent COVID-19, by the way.

If saline rinsing doesn’t relieve your symptoms, or if you have a fever, nosebleeds, or headaches while using the devices, let us know.

Nature Can Heal in More Ways Than One

Humans evolved in the natural world. We may have retreated to caves or huts to protect ourselves from the elements, but we spent much of our time outdoors, hunting, gathering, cooking, telling stories, and so on. Our lives these days, though, are largely spent cut off from nature.

This way of life has sparked a wealth of studies showing that our loss of contact with nature—dubbed “nature deficit disorder”—has a real impact on our physical and mental health.

So our primary care concierge doctors in Jupiter weren’t too surprised to learn of a new study published this month in the journal Occupational & Environmental Medicine, which found that enjoying nature up to four times a week reduced the odds of needing mental health medications by 33 percent.

It also reduced the odds of using blood pressure pills by 36 percent and asthma medications by 26 percent.

The Study

Researchers interviewed about 6,000 people who live in large cities in Finland, asking about their access to and use of green and blue spaces, including parks, zoos, rivers, lakes, or the sea. 

They also asked subjects whether they could see views of nature from their homes, how often they spent time outdoors as well as how much they exercised while outdoors.

The study also accounted for other possible factors such as traffic-related outdoor air pollution and noise, which have been proven to have an adverse effect on health.

Respondents were then asked about their use of medications for depression, anxiety, high blood pressure, asthma, or insomnia, and correlated these with time spent in nature.

As noted above, the results were markedly better for those who were regularly exposed to green or blue spaces. Notably, those who lived in areas with a lot of green spaces or who simply looked at nature from their windows showed no improvement in any of these categories.

“Frequent green space visits, but not the amounts of residential green or blue spaces, or green and blue views from home, were associated with less frequent use of psychotropic, antihypertensive, and asthma medication in urban environments,” the study authors wrote.

Confirming Prior Research

Numerous earlier studies have found significant benefits from spending time in nature.

One meta-review of 143 other studies published in the journal Environmental Research, for example, found that people with access to green space generally had a slower heart rate, lower blood pressure, and fewer blood levels of the stress hormone cortisol. Researchers also found significantly fewer cases of diabetes and lower rates of mortality from heart disease in the group regularly exposed to nature.

An American Institutes for Research (AIR) study in 2005 found that sixth-grade students who attended three outdoor education programs showed marked improvement in conflict resolution skills.

Another study in China in 2013 involved 60,000 children between the ages of two and 17. It showed that regular exposure to nature, or “greenness” around their schools, reduced the incidence of attention deficit/hyperactivity disorder (ADHD). A more recent study at the University of Illinois produced similar results.

And a 2016 study of nearly 100,000 women conducted over eight years found that having access to the greenest space not only improved the subjects’ mental health but also reduced their death rate by 12 percent.

Nature Deprivation Hurts

Author Richard Louv coined the phrase Nature Deficit Disorder (NDD) in his 2005 book “Last Child in the Woods: Saving Our Children from Nature Deficit Disorder.” In it, he argued that elements of our urbanized lifestyle, including few natural spaces, a car-focused culture, more screen time, changes in the perception of risk (e.g., fear of “stranger danger”), less leisure time, and increased time pressure from work or school, combine to decrease or even eliminate contact with nature for both adults and children, according to the National Institutes for Health (NIH).

“The average young American now spends practically every minute—except for the time in school—using a smartphone, computer, television, or electronic device,” Tamar Lewin reported in a Kaiser Family Foundation study on the subject.

According to the Children and Nature Network (C-NN), which was co-founded by Louv, an expanding body of scientific evidence suggests that nature-deficit disorder contributes to:

  • diminished use of the senses
  • attention difficulties
  • conditions of obesity, and
  • higher rates of emotional and physical illnesses

Make the Connection

Unfortunately, to get back to nature, you may need to make a specific effort, because in our harried lives trapped indoors, focused on our screens, we have very little time for real relaxation.

Therefore, it’s often necessary to add nature breaks to our schedules the same way we schedule everything else.

One way is to undertake the Japanese practice known as “forest bathing,” or shinrin-yoku. As Kaiser Permanente’s’ online Thrive explains, “Heading out to a heavily wooded area isn’t required. You could take a trip to a nearby park, your favorite local trail, the beach, or any natural setting. Just be sure to turn off or silence your phone or other devices.”

Psychology Today explains, “Forest bathing is an antidote to pinging distractions, impending deadlines, and never-ending obligations . . . . The idea is to immerse yourself in a natural environment and soak up the many health benefits of being in the green woods.”

However, you manage it, for the sake of your overall health we recommend you take the time to reconnect with the natural world as often as possible.

Damar Hamlin Brings CPR Into the Spotlight

It was a terrifying moment on the field at the Buffalo Bills-Cincinnati Bengals game earlier this month when Bills safety Damar Hamlin stood up following a hit to the chest and then collapsed on the field.

But the good news is that he seems to be well on his way to a remarkable recovery. So our concierge primary care doctors in Jupiter want to join with so many others who are using the incident to urge everyone to learn the lifesaving cardiopulmonary resuscitation (CPR) technique that helped save his life.

What happened to Hamlin?

First, let’s discuss how a routine hit in a football game drove a man to the brink of death.

While full details are not yet available, it appears he was the victim of a rare phenomenon called “commotio cordis,” or ventricular fibrillation. It occurs when an impact directly to the heart occurs at the precise millisecond of the heartbeat when it becomes susceptible to such a blow, interrupting the rhythm.

In such cases, “there is nothing wrong with the heart,” Dr. Hari Tandri, director of the cardiac arrhythmia program at Vanderbilt University Medical Center in Nashville, Tennessee, told NBC News.

Dr. Comilla Sasson, an emergency medicine physician in Denver and a spokesperson for the American Heart Association (AHA), told NBC: “It’s not about how hard a hit it was. It’s actually about the timing of when the blow happens.”

CBS News medical contributor Dr. David Argus told “CBS Mornings” that he believed Hamlin sustained blunt force trauma to his chest “in the exact right spot, at the exact right moment during his heartbeat,” causing his heart to go into arrhythmia, or “not beat effectively to push blood to the brain,” he explained.

“It happens in Little League baseball,” he added. “A ball is thrown by a pitcher and hits the person in the chest. It happens in soccer where there’s something that causes that blunt force trauma. So, remarkably rare.” So rare, in fact, that he estimated that only about 30 of these cases occur in the U.S. every year.

Hamlin was Lucky

As Hamlin continued to rapidly recover in the days following his collapse, observers credited his survival to the immediate response of medical personnel on the field.

“When someone is having a sudden cardiac arrest emergency for any reason . . . time is absolutely critical,” Matthew Levy, an associate professor of emergency medicine at Johns Hopkins University School of Medicine, told The Washington Post.

“For every minute that someone is in sudden cardiac arrest—every minute where their heart is not beating normally and their body tissue is not getting the oxygen it needs—their [chances of] survival goes down by like seven to 10 percent,” he said. “So time is absolutely of the essence.”

“The key in any cardiac arrest is how quickly and effectively CPR is done,” Aaron Baggish, a Mass General Brigham sports medicine cardiologist and founder of the Cardiovascular Performance Program at Massachusetts General Hospital, told The Post.

“So it has to start soon, and it has to be done well enough to get blood to the brain and the other vital organs for as long as it takes to start the heart again with defibrillation,” he said.

Rapid Response

Which is what happened with Hamlin.

Within seconds of Hamlin’s collapse, assistant athletic trainer Denny Kellington began administering CPR to Hamlin, according to a tweet from Bills offensive lineman Dion Dawkins. Others followed the CPR with use of an automated external defibrillator (AED) before Hamlin was rushed to the hospital.

Observers credited the immediate CPR and AED with saving his life. But only about half of Americans report having received CPR training.

And unfortunately, many people who witness a cardiac arrest are reluctant to perform CPR, either because they don’t know how or are afraid of causing further harm. But Good Samaritan laws in all 50 states protect bystanders who step in to help during an emergency from legal liability.

Florida’s statute provides that “Any person . . . who . . . in good faith renders emergency care or treatment . . . shall not be held liable” for damages. Read the whole law here.

But too few Americans have CPR training, the AHA reports.

A Simple Technique

Formal training, which typically involves practicing on a dummy, is preferable to reading about the technique, doctors say.

“You can certainly learn a lot by reading it online, and you can certainly watch videos and understand and learn the technique, but, ultimately, the best thing is to actually get into a class so you can actually practice,” Dr. Jayne Morgan, a cardiologist at Piedmont Healthcare in Atlanta, told NBC News.

The Cleveland Clinic’s Dr. Michael Emery, a sports cardiologist there, told USA Today that CPR is “the most profound, life-changing thing you could potentially learn and do for someone.”

If you’re interested in someday possibly saving a life, you can find CPR classes near you here.

And if you find yourself in a situation where you need to perform CPR, the AHA recommends doing chest compressions at a rate of 100 to 120 per minute, but in the throes of trying to save a life, it can be difficult to count the precise beats needed to keep up the correct rhythm.

So the AHA created a playlist of over 50 familiar songs on Spotify to help bystanders maintain the beat. Click here to listen!

What to Know About the New COVID-19 Variant

As our concierge primary care doctors in Jupiter have said more than once over the past couple of years, we may be done with COVID-19, but the coronavirus isn’t done with us.

It’s still spreading, it’s still sickening and killing people, and it’s still learning how to survive. That’s why the latest report from the Centers for Disease Control and Prevention (CDC) didn’t surprise many health experts.

Late last month the CDC estimated that about 40 percent of current cases of COVID-19 are caused by the latest omicron relative, known as XBB.1.5. In December, XBB.1.5 more than doubled its share of COVID-19 cases each week, rising from about four percent of new infections in the first week to about 41 percent by the end of the month.

“For a few months now, we haven’t seen a variant that’s taken off at that speed,” Pavitra Roychoudhury, director of COVID-19 sequencing at the University of Washington School of Medicine’s virology lab, told CNN.

Latest Mutation

Mehul Suthar, who studies emerging viral infections at the Emory University School of Medicine in Atlanta, told USA Today that XBB.1.5 appears to be about five times more contagious than earlier omicron variants, which were five times more contagious than the original virus.

“The numbers start adding up,” he told the paper.

For you who are trying to keep up with the “scrabble variants,” (so-named because these letters tend to produce higher scores in Scrabble) the XBB.1.5 is related to the XBB variant, which is a recombinant of the BA.2.10.1 and the BA.2.75 sublineages.

While scientists still aren’t sure whether the XBB.1.5 causes more serious illness than its predecessors, NBC News reports that studies performed in the lab have found that XBB appears to be more contagious.

“It’s clear that there are immune evasive properties of XBB,” Isaach Bogoch, an infectious disease physician and epidemiologist at the University of Toronto, told NBC News.

In other words, the virus is evolving to get around the antibodies we’ve built up from vaccines and infections with previous strains.

Improving its Abilities

CBS News reports that the XBB.1.5 variant also contains an additional mutation called S486P, which Chinese scientists say appears to offer a “greatly enhanced” ability to bind to cells. In addition, XBB is resistant to various monoclonal antibody drugs used to treat infections.

“The mutation is clearly letting XBB.1.5 spread better,” Jesse Bloom, a computational virologist at the Fred Hutchinson Cancer Center, told CNN.

“It’s got a better ability to get into cells,” Roychoudhury added.

“We’re projecting that it’s going to be the dominant variant in the Northeast region of the country and that it’s going to increase in all regions of the country,” Dr. Barbara Mahon, director of the CDC’s proposed Coronavirus and Other Respiratory Viruses Division, told CBS News.

The question is how much of this spread is due to XBB.1.5’s enhanced abilities and how much can be attributed to the increased travel and social gatherings over the holidays.

To Worry or Not?

Another looming question is whether it will make people sicker. The data so far are unclear.

While XBB.1.5 shows an ability to evade immunity, Bogoch told NBC News that even if cases begin to rise significantly, he doubts there’ll be the dramatic spike in hospitalizations or deaths we saw in previous waves.

In addition, other parts of the immune system can work to protect against the virus, and vaccines along with prior infections should offer some protection from severe disease.

“We might certainly have a wave, but it’s just much less likely to be as deadly or overwhelming to healthcare systems compared to earlier waves before we had this degree of hybrid immunity,” he said.

Still, experts worry that the falloff in vaccination boosters could create problems.

“We aren’t in 2020, but people still do need to take this seriously and protect themselves,” the CDC’s Mahon told NBC.

Get Protection

One way to protect yourself, which most people are resisting, is to wear masks in public because it’s safer to avoid getting infected at all, Suthar told USA Today.

“The ‘it’s OK if I get infected’ attitude is not the most viable,” he said, adding that he still wears a mask when in public indoor spaces.

And all of the experts are concerned that less than 15 percent of the population has received the latest boosters against the coronavirus. Although they aren’t designed for the XBB.1.5 variant, they will offer some degree of protection.

Michael Osterholm, who directs the University of Minnesota’s Center for Infectious Disease Research and Policy, told CNN he sees reason for hope from the updated bivalent boosters, which target the original coronavirus as well as the omicron strains BA.4 and BA.5.

“They still provide a level of immunity that may not prevent you from getting infected but may have a significant impact on whether you become seriously ill and die,” he said.

“I mean, right now, the most recent data we have shows that for those who have the bivalent vaccine, they have a three-fold lower risk of dying than those who don’t,” he added.

Could You Have Hidden Thyroid Problems?

Has your sex drive decreased recently? Have you been constipated lately? Do you have brain fog or unusual fatigue? Are you unusually sensitive to heat or cold?

You could have a thyroid problem and not even know it. The World Health Organization (WHO) estimates that 750 million people in the world have some form of thyroid disease, and as many as 60 percent of those are undiagnosed.

Because January is Thyroid Awareness Month, our concierge primary care doctors in Jupiter want to take this opportunity to share some facts you may not know about this critical gland in your body.

About Thyroid Disease

Many people go through their lives feeling “blah” or “not right” or putting up with symptoms they think is just a part of life, when in fact a malfunctioning thyroid is the real issue.

This gland, shaped like a butterfly, is located at the front of the neck, just below the Adam’s apple. It produces a hormone (thyroid stimulating hormone, or TSH) that influences nearly all the metabolic processes in the body. So when something goes wrong, this little gland can produce big problems.

The U.S. Department of Health and Human Services (HHS) reports that women are more likely than men to have thyroid disease. One in eight women will develop thyroid problems during their lifetime. Anyone over age 60, especially women, is at higher risk of developing thyroid disease, along with anyone who has diabetes.

In women, thyroid disease can cause several issues specific to their sex, including problems with the menstrual period, problems with getting pregnant, and problems during pregnancy.

In general, the two main types of thyroid disorders result from either underproduction or overproduction of TSH, and the symptoms of each are generally opposites of each other, although thyroid dysfunction can have hundreds of possible symptoms.

These two main disorders, hyperthyroidism, and hypothyroidism can result from many different causes, and can also be inherited.

Symptoms of Each Type

Hyperthyroidism results from the overproduction of thyroid hormones, thereby speeding up every process in the body. The heart beats faster, food is digested more rapidly, the kidneys process urine more quickly, etc.

Some of the symptoms of hyperthyroidism can include:

-increased perspiration
-insomnia
-increased appetite
-weight loss
-nervousness/anxiety
-irritability
-hand tremors
-muscle weakness, especially in the upper arms or thighs
-hair loss/fine brittle hair
-heart palpitations/irregular heartbeat/racing heart
-sensitivity to heat
-carpal tunnel syndrome
-more frequent bowel movements
-light or less frequent menstrual cycles

Hypothyroidism is the more common type of thyroid disease, in which the thyroid doesn’t release enough thyroid hormone. As you might expect, with this type of thyroid problem every process in the body slows down.

Some of the symptoms of hypothyroidism can include:

-fatigue
-sensitivity to cold, especially cold hands and feet
-constipation and gas
-pain, stiffness, or swelling in joints
-brain fog/memory problems
-weight gain
-irregular or heavy menstrual periods
-hoarseness
-dry skin
-poor appetite
-lowered libido
-puffy/swollen face
-fluid retention/bloating
-thinning hair or hair loss
-muscle weakness
-depression

There can also be other symptoms, and they vary from person to person. Often they are dismissed as stressed, feeling “run down,” or simply aging. So you can see why so many people have undiagnosed thyroid dysfunction.

Simple Treatments

Another type of thyroid issue that frequently has no symptoms is thyroid cancer. According to the American Society of Clinical Oncology (ASCO), thyroid cancer is the most common form of cancer in women between the ages of 20 and 34, and the only symptoms may be difficulty swallowing, or sometimes throat pain accompanied by a persistent cough.

Approximately one percent of Americans are diagnosed with thyroid cancer in their lifetimes, representing about two percent of all cancer cases in the U.S. The good news is that this cancer is highly treatable, even in advanced stages.

And treatment for an over- or underactive thyroid is simple, safe, and effective. This includes anti-thyroid drugs, radioactive iodine, and beta-blockers to help control symptoms.

If you are experiencing any of these symptoms, it’s important that you let us know so you can get treatment. Untreated thyroid disease can damage many organs of the body, including the heart and kidneys.

Keeping it Healthy

Here are some steps you can take to keep your thyroid healthy.

  1. Be sure the salt you use is iodized. Many of the specialty salts do not contain iodine. The thyroid requires iodine to function properly, but the recent popularity of such specialty salts as sea salt and Himalayan salt has reduced the amount of iodine in some diets. Too little iodine can result in hypothyroidism.
  2. Avoid uncooked cruciferous vegetables, including broccoli, cauliflower, cabbage, Brussels sprouts kale, watercress, and kohlrabi. These particular vegetables contain substances called goitrogens that interfere with the efficient synthesis of thyroid hormones. Cooking inactivates these substances, making them safer to eat.
  3. Opt for more seafood in your diet, especially crab, shrimp, lobster, clams, and mussels. All of these are rich sources of iodine.
  4. Avoid processed foods. Although high in sodium, processed and packaged foods do not contain iodized salt.

These guidelines can help maintain the health of your thyroid. But do not try to self-treat a suspected thyroid problem, especially with iodine supplements, which can make symptoms worse.

Doctor’s Best Diets for the New Year

At the beginning of every new year, it’s customary to make resolutions to improve our lives in some way. Usually near the top of the list of New Year’s resolutions the goal of losing weight. Our primary care concierge doctors in Jupiter certainly applaud that one, because obesity negatively impacts our health in so many areas, from the possibility of type 2 diabetes to heart disease. 

But there are other reasons to adhere to a particular type of diet, which don’t necessarily relate to weight loss. Diet in this sense means a way of eating, whether it’s cultural or just for overall health.

Forbes 2023 Rankings

Forbes Health recently consulted a team of seven nutrition experts to rate 19 diets considering a range of factors, from weight loss to heart health. 

Which one is best for you depends on your reason for trying a new diet. Of the 19 diets reviewed, these made the top 10:

  • Best for overall health: Mediterranean diet, emphasizing fresh fruits, olive oil, nuts, and fish
  • Best non-meat diet: vegetarian, which generally doesn’t allow meat, poultry, or fish
  • Best for heart health: dietary approaches to stop hypertension (DASH) diet, which focuses on fruits, vegetables, whole grains, lean proteins, and low-fat dairy
  • Best commercial diet: Weight Watchers (now known as WW), emphasizing lower calories, with coaching and group support
  • Best commercial diet runner-up: Noom, an app that ranks food according to calories, with coaching and group support
  • Best non-meat diet runner-up: vegan, which allows no animal products of any kind
  • Best diet for flexibility: pescatarian, a type of vegetarianism that also allows fish and other seafood
  • Best diet for holistic health: Ornish diet, low-fat emphasis allowing no meat, fish, or poultry
  • Best diet for a brain boost: MIND diet, a combination of the Mediterranean and DASH diets
  • Best diet for a nutrient boost: Nordic diet, consisting primarily of fish, berries, and winter vegetables, with a small amount of meat and sweets allowed

Other Views

The annual US News listing of best diets includes most of the above diets, in addition to Jenny Craig, Dr. Weil’s anti-inflammatory diet, the Mayo Clinic diet, volumetrics, the nutritarian diet, the South Beach diet, and the Plantstrong diet.

Everyone, it seems, has an opinion on what makes a great diet.

For instance, Dr. Michael Greger told NBC’s TODAY that the worst diet is what he terms the CRAP diet: “calorie-rich and processed foods” that make health problems worse and weight loss impossible.

Instead, he recommends consuming a whole-food, plant-based diet, which is naturally high in fiber and low in calorie density and allows people to eat as much as they want—no calorie counting or portion control needed.

“It’s a diet that minimizes the intake of meat, eggs, dairy, and processed junk, and maximizes the intake of fruits, vegetables, legumes like beans, whole grains, nuts and seeds, mushrooms—basically, real food that grows out of the ground. Those are our healthiest choices,” he told TODAY.

“The strategy is to improve the quality of food rather than restricting the quantity of food,” he added, “so it doesn’t leave you hungry. That’s a diet you can stick with. You get a boost of energy, better digestion, better sleep.”

Skip the Gimmicks

His approach is simple. And in contrast, notice what kinds of diets don’t show up on any of these lists.

The hugely popular keto diet is one example. Studies show that 80 percent of those who try it struggle to stick with it. Why, when it often results in huge and rapid amounts of weight loss?

Because it not only can it cause numerous side effects—body aches, headaches, light-headedness, nausea, fatigue and lethargy, constipation, and brain fog—but because everyone else is eating garlic bread and mashed potatoes (not cauliflower) with gravy and pasta. 

Because, in short, the keto diet is restrictive. It has a long list of very tasty foods that either aren’t allowed or are allowed only in small portions after a certain time.

“When you are on the keto diet, you drastically cut your carbs to only 20 per day. That’s less than one apple!” nutritionist Lisa Drayer, a CNN contributor, told the network.

Bottom Line

Above all, research shows that the most successful diet is the one that you yourself designed because it gives you a sense of control, rather than being at the mercy of a set of restrictive rules.

“You have to have joy and pleasure in food,” Stanford University professor of medicine Christopher Gardner told The Washington Post. He has conducted numerous randomized trials to test the success rate of various diets and found they are essentially the same.

“They agree more than they disagree,” he said. Instead, he counsels, “Limit added sugars and refined grains, and eat more non-starchy vegetables. [I]f you do those two things, you get 90 percent of the benefits.” 

If you enjoy what you eat, you’ll have a much better chance of sticking with it for the rest of your life, he added.

Study Finds Another Possible Benefit from Intermittent Fasting

Diet fads come and go, especially on today’s social media. Our primary care concierge doctors in Jupiter cringe whenever a new weight loss gimmick surfaces, because nearly all of them are unsupported by science, and—while they may achieve temporary weight loss—are nutritionally unsound.

One atypical approach to eating that seems to be generally accepted in the medical literature is the technique of intermittent fasting (IF). This is an eating pattern that includes hours or days of no or minimal food consumption without deprivation of essential nutrients.

The first approach, known as 16:8, is the most popular, which involves fasting for 16 hours a day and consuming all your meals within an eight-hour period.

Other popular types of Intermittent Fasting involve either fasting on alternate days, or 5:2 fasting, which involves eating normally five days a week and fasting for two non-consecutive days a week, consuming 500-600 calories on fasting days.

Benefits of Intermittent Fasting

Evidence from decades of animal and human research suggests wide-ranging health benefits from IF, according to a 2020 review of the research published in the New England Journal of Medicine (NEJM).

Researchers found that “eating in a six-hour period and fasting for 18 hours can trigger a metabolic switch from glucose-based to ketone-based energy, with increased stress resistance, increased longevity, and a decreased incidence of diseases, including cancer and obesity.”

And researchers at Johns Hopkins Medicine also found numerous health benefits that result from Intermittent Fasting:

-improved working memory and verbal memory
-improved blood pressure and resting heart rates, as well as other heart-related measurements
-reduced tissue damage during and after surgery
-loss of fat while maintaining muscle mass

In addition, the Mayo Clinic reports: “Some research suggests that intermittent fasting may be more beneficial than other diets for reducing inflammation and improving conditions associated with inflammation, such as Alzheimer’s disease, arthritis, asthma, multiple sclerosis, [and] stroke.”

And the American Heart Association recently reported in its journal Heart that “[r]egular fasting is associated with lower rates of heart failure and a longer life span, according to two new studies.”

Latest Finding

Finally, a new study published this month in the Endocrine Society’s Journal of Clinical Endocrinology & Metabolism showed that after an IF diet intervention, patients achieved complete diabetes remission, defined as an HbA1c (average blood sugar) level of less than 6.5 percent at least one year after stopping diabetes medication.

In this small study of 36 participants, researchers at Hunan Agricultural University in Changsha, China, placed participants who had type 2 diabetes from one year to 11 years on the more restrictive IF plan of five fasting days followed by 10 days of reintroducing everyday food items such as wheat, barley, rice, rye, and oats. Subjects ranged between 38 and 72 years of age and were using anti-diabetic drugs and/or insulin injections.

Known as the Chinese Medical Nutrition Therapy (CMNT) diet, the approach resulted in 47.2 percent of participants achieving diabetes remission, compared with 2.8 percent in the control group.

The study showed that “type 2 diabetes is not necessarily a permanent, lifelong disease,” Dongbo Liu, the study’s corresponding author and a professor at the University, said in a news release.

Dr. Robert Gabbay, chief scientific and medical officer for the American Diabetes Association (ADA), told UPI he found the study’s findings encouraging.

“This study, though small, adds to the emerging literature on the potential benefits of intermittent fasting for the diabetes community,” he told the news organization.

Some Caution Warranted

If you plan to follow an IF diet, we strongly suggest that you check with us first, because this type of eating plan isn’t for everyone.

For example, one small 2020 study published in the journal JAMA Internal Medicine found that those following the 16:8 IF diet over 12 weeks lost little weight but most of what they did lose was “lean mass” which includes muscle tissue, possibly because they were consuming less protein.

And Harvard Health Publishing notes several other potential side effects from IF:

  1. Depending on the length of the fasting period, you may experience headaches, lethargy, crankiness, or constipation.
  2. It may cause you to overeat “because your appetite hormones and hunger center in your brain go into overdrive when you are deprived of food.”
  3. It may be dangerous if you’re taking certain medications, including anti-diabetes drugs and medications for blood pressure or heart disease.

How to Intermittent Fast Safely

Registered dietitian Kathy McManus, director of the Department of Nutrition at Harvard-affiliated Brigham and Women’s Hospital, recommends easing into an IF plan to help your body adjust more easily.

“Slowly reduce the time window for eating, over a period of several months,” she advises.

She recommends you should also:

Continue your medication regimen as recommended by your doctor.
Stay hydrated with calorie-free beverages, such as water and black coffee.
Choose a modified fasting plan approved by your doctor if you need to take the medication with food.

Also, if you’re thinking, “If some fasting is good, more will be even better,” don’t. Longer periods without food can encourage your body to store more fat because it slips into starvation mode.

Finally, eating normally during the off-fast portion of the day or week doesn’t mean binging on junk food. Whether fasting or not, your body needs healthy, nutritious food to maintain health and a normal weight.

Protect Yourself from the Common Cancer That Killed Kirstie Alley

Like many fans of Kirstie Alley, our primary care concierge doctors in Jupiter were sorry to learn of her death at age 71. We were even more troubled to learn of its cause: colon cancer because many of these deaths can be prevented with early screening.

The National Cancer Institute (NCI) estimates that 151,000 cases of colorectal cancer will be diagnosed this year. Colon cancer is the second-most deadly cancer in the U.S., behind only lung cancer, and is the third most common type of cancer.

Alley’s family reported that her cancer was “only recently discovered.” While we don’t know details beyond her family’s brief statement, her longtime friend Taylor Dayne told The Daily Beast she hopes to raise awareness about how common colon cancer is. The singer, who went public this summer with her own colon cancer diagnosis, urged people to get regular screening tests.

“I say stay on top of your health, get your mammograms, get a colonoscopy at 40. I don’t think you have to wait until 50,” she said.

How Screening Helps

Colon cancer begins in the large intestine (i.e., the colon), the final part of the digestive tract. It typically affects older adults, although it can occur at any age. Award-winning actor Chadwick Boseman died of colon cancer in 2016 at age 43. Jay Monahan, husband of former “Today” show host Katie Couric, died of colon cancer in 1998 at age 42.

More recently, actors Ryan Reynolds and Rob McElhenney videotaped parts of their colonoscopies to raise public awareness of the disease. Doctors found both actors had polyps that were removed.

One 2017 study from the American Cancer Society (ACS) published in the journal JAMA showed that colon cancer deaths are not only rising among younger white people but that the cancers diagnosed in this population are more advanced and more deadly. Researchers found that new cases of colorectal rose more than two percent each year among those under 50.

The Mayo Clinic reports that colon cancer usually begins as small, noncancerous (i.e., benign) polyps (tiny bumps or mushroom-like stalks) that form in the lining of the colon. Over time, some of these polyps can become cancerous although they produce few if any, symptoms.

But with regular colonoscopies, these polyps can be found and removed before they become cancerous.

According to the American Cancer Society (ACS), treatment can depend on the cancer stage. For example, stage II colon cancer can grow through the wall of the colon, and patients may need surgery to remove part of the colon, which is what Dayne had done following a routine colonoscopy.

“I was prone to developing polyps, so I was more on top of it, but five months after my last colonoscopy I had another one done in July, and that’s when I found out,” she told The Daily Beast.

Symptoms and Risk Factors

Although there may be a few symptoms, they can often be mistaken for other conditions such as hemorrhoids or irritable bowel syndrome (IBS).

Some of the earliest symptoms may include rectal bleeding or changes in bowel movements such as diarrhea or constipation, or a feeling that your bowel doesn’t empty completely.

Other symptoms can include abdominal cramps, gas, or other pain, fatigue, anemia, decreased appetite, and weight loss.

Besides being over the age of 50, risk factors that may increase your risk of colon cancer include:

  • a personal history of colorectal cancer or polyps
  • inflammatory intestinal conditions such as ulcerative colitis or Crohn’s disease
  • a family history of colon cancer
  • a low-fiber/high-fat diet
  • sedentary lifestyle
  • diabetes or insulin resistance
  • obesity
  • smoking
  • heavy use of alcohol

Screening Tests Matter

Because anyone can get colon cancer, doctors recommend screening tests every 10 years beginning at age 45, but those with increased risk should consider screening sooner.

“Unfortunately, colon cancer doesn’t have a lot of symptoms until it’s advanced, which is why screening is so important,” Paula Denoya, director of the Colorectal Surgery Residency Program at Stony Brook Medicine, told NBC News.

Meanwhile, Joel Levine, co-director of the Colon Cancer Prevention Program at UConn Health told NBC News that the rising rates of the disease among younger Americans show no signs of abating.

“There’s an expectation there will be 15 percent of [all] colorectal cancers in people under 50 not too long from now,” he said, which is why he strongly recommends early screening.

“One of the reasons I’m so fussy about not waiting for symptoms is because it leads to, ‘Well, I feel all right, everything’s OK.’ And by the time you have a symptom, the horse is a little bit out of the barn.”

ACS guidelines emphasize individual preference and choice in testing options.

These are basically broken into two categories: stool-based tests, which are recommended every one to three years, and visual exams, including colonoscopy, every five to ten years, depending on risk factors. 

The ACS stresses that these screening tests must be repeated regularly to be effective and that any abnormal stool-based test result should be followed up with a colonoscopy, which it considers to be the gold standard in colorectal cancer screening.

And the best ways to avoid many types of cancer, according to the ACS, are to limit red and processed meats, consume a diet high in vegetables, fruits, and whole grains, avoid tobacco, maintain a healthy weight, get regular physical exercise, and limit alcohol consumption.

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