Correlation is not the same as Causality: CTE Edition

Doctors who have been studying Junior Seau’s brain, just discovered clear signs of CTE–essentially a degenerative brain condition that is related to getting hit in the head. Seau, in case you don’t know, is one of the great NFL linebackers of all time, who played for the San Diego Chargers and New England Patriots. A few years ago, after his retirement, his friends and family noted some dramatic changes in his mood and behavior, which culminated in his suicide last year. All of that is associ...