That music at bedtime that’s supposed to help you fall asleep may actually have the opposite effect, new research suggests. It turns out that “earworms,” those catchy bits of a composition that can get stuck in a person’s head can also interject themselves into a person’s dreams, affecting the ability to fall asleep and to…  read on >  read on >

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, and will people who’ve gotten the jab need booster shots to maintain their protection? It’s an important question,…  read on >  read on >

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 for at least 4 1/2 months, J&J said in a statement. In February, the FDA first authorized the…  read on >  read on >

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) between 2003 and 2013. The severity of their brain injuries varied, and nearly six in 10 were men.…  read on >  read on >