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Reinfection with COVID-19 in people who’ve already had the illness is very rare, and most people are protected against reinfection for at least six months, a new report finds. However, immunity appears to drop sharply in those aged 65 and older, researchers found. Reporting Wednesday in The Lancet, a team of Danish scientists looked at…  read on >  read on >

A new study finds that attention deficit hyperactivity disorder (ADHD) continues to hamper people long after childhood ends. Researchers found that adults with ADHD often have a harder time holding their own in the workforce. High school graduates with ADHD earn about 17% less than their peers without ADHD, are more likely to have stints…  read on >  read on >

People with multiple sclerosis (MS) may be wondering if they should get a COVID-19 shot, and the answer is definitely yes, an expert says. “The big takeaway message is the COVID-19 vaccine is strongly recommended for patients with multiple sclerosis,” said Dr. Nancy Sicotte, director of the Multiple Sclerosis and Neuroimmunology Program at Cedars-Sinai in…  read on >  read on >

For people hoping to prevent the heart rhythm disorder known as “a-fib,” new research shows that taking vitamin D or fish oil supplements won’t help. A-fib, also known as atrial fibrillation, affects more than 33 million people worldwide and is the most common type of abnormal heart rhythm. It can cause symptoms that affect a…  read on >  read on >

For many, it’s like emerging suddenly from a long, dark tunnel. Some people who’ve been laid low for months by so-called “long haul” symptoms after a coronavirus infection say that within days of getting their COVID-19 vaccine, those symptoms nearly disappeared. Speaking with The New York Times, Bridget Hayward, a 51-year-old operating room nurse in…  read on >  read on >