Body & Brain

Hockey concussions take progressively longer to heal, plus rotavirus vaccines and declining stillbirths in this week's news.

Recovery time longer with each concussion
Each successive concussion suffered by a professional hockey player takes slightly longer to overcome than the last, a study released online April 18 in the Canadian Medical Association Journal shows. The researchers, including National Hockey League team physicians, analyzed all 559 concussions reported in seven NHL seasons spanning 1997 to 2004, an average of 80 per season.