The more often you work out, the more effective your COVID-19 vaccination will be, a new study suggests. Fully vaccinated folks who clocked high weekly levels of physical activity were nearly three times less likely to land in the hospital with COVID, compared to those who got the jab but didn’t exercise often, researchers found.…  read on >  read on >

A Missouri woman has sued L’Oréal and several other beauty product companies, alleging that their hair-straightening products caused her uterine cancer. The lawsuit claims that Jenny Mitchell’s cancer “was directly and proximately caused by her regular and prolonged exposure to phthalates and other endocrine-disrupting chemicals found in defendants’ hair care products.” Mitchell, now 32, was…  read on >  read on >

School-age kids who spend hours a day playing video games may outperform their peers on certain tests of mental agility, a new study suggests. Researchers found that compared with children who never played video games, those who regularly spent hours gaming had higher scores on two standard cognitive tests: one measuring short-term memory and another…  read on >  read on >

Experts studying kids’ sleep and eating habits have learned more about a potential reason for childhood obesity. Kids who are deprived of sleep tend to eat more calories the next day, researchers found. And some of those extra calories come from less-healthy, sugar-laden snacks or treats. “When children lost sleep, overall they ate an extra…  read on >  read on >

Surgery can be a daunting prospect at any age. Now, researchers say they’ve spotted two key factors upping the odds of a poor surgical outcome in seniors. Older adults who are either frail or suffering from dementia have high rates of death in the year following a major procedure, a new U.S. study finds. Researchers…  read on >  read on >