FIRST AIRED: May 23, 2017

Nice work! Enjoy the show!

×

You’re busy. We get it.

Stay on top of the news with our Editor’s Picks newsletter.

US Edition
Intl. Edition
Unsubscribe at any time. One click, it’s gone.

Thanks for signing up!

×

Transcript

00:00:00
as head coaches at Harvard Yale and Princeton consider a ban on tackling , weaving Saturdays open for full contact , alternate CP that condition is associated with early onset dementia and sometimes violent behavior later in life there are currently no tests to diagnose OCD you know living patient , Boston University researchers have found evidence of the condition in the brains of ninety of ninety four former National Football League players did a study in two thousand eight