Today's Health Links August 9, 2013

Scientists have identified a key factor that regulates the autophagy process, a kind of cleansing mechanism for cells in which waste material and cellular debris is gobbled up to protect cells from damage, and in turn, modulates aging.

The media have widely reported that retired NFL players are at risk for chronic traumatic encephalopathy, which causes aggression, depression, dementia and suicidality. But a study of retired NFL players finds no evidence to support this theory.