As the number of people fully immunized against COVID-19 rises into the hundreds of millions, immunologists and infectious disease experts now are pondering a new question in the unfolding pandemic. Namely, how long will vaccine immunity last,...

U.S. regulators have extended the expiration date on millions of Johnson & Johnson coronavirus vaccine doses by six weeks, the company announced Thursday. A U.S. Food and Drug Administration review concluded the shots remain safe and effective...

CDC Calls Emergency Meeting on Heart Inflammation Link to COVID Vaccines An emergency meeting will be held June 18 to discuss rare reports of heart inflammation in people who’ve received the Pfizer and Moderna COVID-19 vaccines, the...

There is no such thing as healthy obesity, a Scottish study reports. A normal metabolic profile doesn’t mean an obese person is actually healthy, because he or she still has an increased risk of diabetes, heart disease,...

The old double standard lives on. A new study finds that many people still believe — incorrectly — that women who engage in casual sex have low self-esteem. And they don’t think the same is true of...

Sleep disorders may increase the odds for dementia in survivors of traumatic brain injury, new research suggests. The study included nearly 713,000 patients who were free of dementia when they were treated for traumatic brain injury (TBI)...

Suffering for fashion is nothing new. Researchers in the United Kingdom have unearthed new evidence that stylish pointed shoes caused a “plague” of bunions in the late medieval period. Investigators from the University of Cambridge analyzed 177...

Antibody treatments are safe and effective for transplant patients with mild to moderate COVID-19, a new study shows. Monoclonal antibodies help prevent the SARS-CoV-2 virus from attaching to cells, which helps block the spread of infection. The...

People over 70 are far less likely to be considered for or to receive a new heart — even though new research suggests their survival rates after transplant are similar to those of younger patients. For the...

In a finding that confirms healthy habits make for healthy hearts, new research shows that smokers and obese people must have their clogged arteries cleared at much younger ages than nonsmokers or people who are a normal...