Kinesiologists at McMaster University have found that physical activity may help fight depression in seniors by stimulating muscle-generated mood boosters. The findings, published in the American Journal of Physiology—Cell Physiology, reveal that the underlying mechanisms that make us feel good when we exercise persist into old age and highlight the importance of staying active. MORE

Driving while on prescription opioids plays an increasingly significant role in fatal motor vehicle crashes, irrespective of alcohol use and demographic characteristics, according to a new study conducted at Columbia University’s Mailman School of Public Health. MORE