New research finds 1 in 4 NFL players could develop CTE in their lifetime: 'Should be a call to action'

A new study found at least one in four former NFL players may develop CTE, prompting Dr. Julian Bailes to call for urgent proactive brain protection.

A new study found at least one in four former NFL players may develop CTE, prompting Dr. Julian Bailes to call for urgent proactive brain protection.