Joe Rogan & Dave Portnoy discuss head trauma & concussions in the NFL and combat sports. Has then NFL hidden the fact that they held this knowledge for a long time? They have to act as it is new information to protect the past.. But it is probably worth the life you receive for the risk. Rather achieve greatness than live a normal boring life. What are your thoughts? Comment below

Dave Portnoy is the founder of the website and digital media company Barstool Sports.

Joe Rogan Experience #1920