Americans love to have choices, and now there are three COVID-19 vaccines approved for use in the United States.

But infectious disease experts say that all three protect strongly against severe COVID-19, so there is only one criteria to use in deciding which vaccine is the best.

"There is a single best vaccine. It's the one that's a... Full Page

FRIDAY, March 5, 2021 (Healthday News) -- Coronavirus restrictions should not be lifted until the daily toll of new U.S. cases falls below 10,000, "and maybe even considerably less than that," Dr. Anthony Fauci said Thursday.

The last time the United States saw that low a number was almost a year ago. The daily case count hasn't falle... Full Page

With each beat of your heart, the muscle squeezes, feeding blood to the rest of your body. The squeeze is triggered by an electrical impulse.

Sometimes, though, a glitch slows that impulse. This can cause lightheadedness, low energy and shortness of breath.

New York Yankees manager Aaron Boone felt those symptoms. Doctors traced them... Full Page

Readers pay attention when social media sites label an article as "unverified" or "suspicious," a new study suggests.

But how an article is presented -- including author credentials and writing style -- doesn't affect readers' views about its credibility.

The findings show that big tech companies such as Facebook and Twitter have a r... Full Page

Seizures of illegal drugs fell sharply in the United States during early COVID-19 lockdowns, but spiked once stay-at-home orders eased.

Researchers studied seizures of marijuana, cocaine, methamphetamine, heroin and fentanyl in five locations between March 2019 (a year before the pandemic began in the United States) through September 2020,... Full Page

You might decide your frizzy locks aren't so bad after all, given a new warning from the U.S. Food and Drug Administration that most hair straightening/smoothing products release formaldehyde gas, a human carcinogen.

Being exposed to formaldehyde for longer periods of time and at higher concentrations increases the health risks, according... Full Page

There's new evidence that fast-spreading variants of the coronavirus that causes COVID-19 are more resistant to antibody treatments and vaccines.

Researchers assessed variants first identified in South Africa, the United Kingdom and Brazil and found that they can evade antibodies that work well against the original version of the coronavir... Full Page

Some people given the Moderna COVID-19 vaccine may develop a reaction at the injection site that can first appear more than a week after they get the shot, research shows.

A minority of patients may experience a large, red, sometimes raised, itchy or painful skin reaction, according to researchers at Massachusetts General Hospital (MGH) in... Full Page

THURSDAY, March 4, 2021 (HealthDay News) -- While strokes strike many Americans, a new study shows the risk is particularly high among American Indians.

Researchers already knew that American Indians had the highest risk of atrial fibrillation, which is an irregular heartbeat ("arrhythmia") that can increase the risk of ... Full Page

THURSDAY, March 4, 2021 (HealthDay News) -- In some reassuring news for professional athletes, a new study finds very few develop inflammatory heart disease after being infected with COVID-19, and most can safely return to play.

In fact, of nearly 800 professional athletes who had tested positive, less than 1% were barre... Full Page

Because of the lack of oxygen at such lofty altitudes, Dr. Akil Taherbhai needed four hours to climb the last mile to the peak of Mount Kilimanjaro, the highest freestanding mountain in the world.

Savoring the sense of triumph as he finally reached the summit, the family physician who is known as Dr. Taher to his patients in Gadsden, Alaba... Full Page

THURSDAY, March 4, 2021 (HealthDay News) -- Even after suffering a stroke, many Hispanic Americans still have uncontrolled diabetes, high blood pressure or other conditions that raise their risk of a repeat one, a new study finds.

The study involved 404 Hispanic adults with a history of stroke or "mini-stroke," which is ... Full Page

A common herb that makes your favorite feline high may hold the key to a mosquito-free summer in your backyard.

Researchers say catnip is as effective as synthetic insect repellents, including DEET, and they report why this common member of the mint family drives bugs positively buggy.

The active ingredient in catnip -- nepetalacton... Full Page

THURSDAY, March 4, 2021 (Healthday News) -- In a finding that suggests overweight people should be prioritized for COVID-19 vaccines, a new report released Thursday shows the risk of death from coronavirus infection is about 10 times higher in countries where most of the population is overweight.

The World Obesity Federation report fo... Full Page

THURSDAY, March 4, 2021 (HealthDay News) -- Like many people this past year, teenager Tyona Montgomery began experiencing a sore throat and a loss of sense of smell and taste in November that suggested she might have COVID-19.

A positive test confirmed it, but she quickly felt better.

Then, just two weeks later, n... Full Page

Concussions can increase the long-term risk of a wide range of sleep disorders, a new study indicates.

Researchers looked at more than 98,700 U.S. veterans diagnosed with a traumatic brain injury (TBI) and the same number of veterans with no history of TBI. The brain injuries ranged from mild TBI (concussion) to severe.

None of the p... Full Page

Who is more likely to relapse after opioid addiction treatment — women or men?

A new study that followed 1,100 recovering opioid users reveals that their risks are different.

The researchers followed the men and women for one year after treatment at more than 100 substance-use treatment facilities across the United States. During t... Full Page

If your teen seems disinterested in school, new research suggests there's a good chance that things will get better over time.

"Our results point to a more hopeful picture for students who start out with lower levels of motivation," said study senior author Kui Xie, a professor of educational studies at Ohio State University in ColumbusFull Page

Women with type 1 diabetes may have a shorter length of time to conceive and bear children compared to those without the disease, new research suggests.

The hormone insulin plays an important part in regulating female reproductive function, and people with type 1 diabetes don't make enough insulin on their own. But little was known about h... Full Page

WEDNESDAY, March 3, 2021 (HealthDay News) -- For helping Parkinson's patients improve their balance and mobility, golf may beat the martial art exercise tai chi, a new, small study reveals.

"Exercise is well-known to treat the symptoms of Parkinson's disease," said study author Dr. Anne-Marie Wills, noting it helps to im... Full Page