The heart rates of people sync up when listening to a story, a new study finds. “There’s a lot of literature demonstrating that people synchronize their physiology with each other. But the premise is that somehow you’re interacting and physically present [in] the same place,” said co-author Lucas Parra, a professor of biomedical engineering at…  read on >  read on >

Attention-deficit/hyperactivity disorder (ADHD) appears to be somehow linked to risk of dementia and Alzheimer’s disease, a new multigenerational study has found. Parents and grandparents of people with ADHD have a higher risk of Alzheimer’s and dementia than people with no ADHD in their family, Swedish researchers said. Specifically, parents of an ADHD child have a…  read on >  read on >

People who eat plenty of fruits and vegetables may have a somewhat lower risk of COVID-19 than those with unhealthy diets, a new study suggests. Of more than 590,000 adults surveyed, researchers found that the quarter with the most plant-rich diets had a 9% lower risk of developing COVID-19 than the quarter with the least-healthy…  read on >  read on >

An experimental Ebola vaccine appeared effective in children and adults in a clinical trial. Two doses of Johnson & Johnson’s Ebola vaccine appear safe, well tolerated and produce a strong immune response in people over the age of 1, according to two just-published papers. The trial was conducted in the West African nation of Sierra…  read on >  read on >

Eight in 10 older Americans think health care workers should be vaccinated against COVID-19, according to a new poll. Among 50- to 80-year-olds, 61% of respondents said the vaccine should be required for all health care workers. Another 19% said vaccination should probably be required. The remaining 20% oppose mandatory vaccination, the findings showed. The…  read on >  read on >