Concussion Confusion

Concussions seem to happen all the time. I mean, they are absurdly frequent. I remember one, maybe two kids having concussions when I was growing up. These days they are a dime a dozen. 

Some of this is a function of the fact that we have redefined the word concussion. Any head bonk, it seems, can qualify. Back in the 70s and 80s, concussion...READ MORE