Women are more likely to lose more muscle mass during space flight than men, a new lab study suggests. Females participating in the extended bed rest study lost more leg muscle mass at two months than the men had lost at three months, results show. The findings “suggest that women are more susceptible to weightlessness-induced…  read on >  read on >

Head injuries related to football might be tied to markers of dementia like brain shrinkage and decreased blood flow to the brain, a new study of former pro and college players reports. The study looked at signs of injury to the brain’s white matter, called white matter hyperintensities. These are caused by reduced blood flow…  read on >  read on >

Elite athletes who suffer a sudden cardiac arrest might have genetics that make them more vulnerable to heart disease, a new study suggests. Analysis of more than 280 top-level endurance athletes revealed that 1 in 6 have measures that would normally suggest heart disease and reduced heart function, researchers report in the journal Circulation. Those…  read on >  read on >

Dandruff becomes more common in the cold winter months, when the chilly air and dry heat causes a person’s scalp to flake and itch. But while it might be an annoying and unattractive condition, dandruff doesn’t mean you are an unclean person, the American Academy of Dermatology (AAD) says. “It is a common misconception that…  read on >  read on >

Regular exercise appears to enhance and even grow crucial areas of the human brain, new research using MRI scans shows. It’s long been known that physical activity is a brain-booster, but this international study illustrates ways this could be happening. “With comprehensive imaging scans, our study underscores the interconnected synergy between the body and the…  read on >  read on >

Games like football, soccer and rugby come to mind when thinking about sports-related concussions. But a smashing tennis shot could cause a traumatic brain injury if the ball whacks a player’s head, a new study argues. Concussions can happen if a tennis ball traveling faster than 89 miles per hour hits someone on the head,…  read on >  read on >