New NFL Poster Issues Blunt Concussion Warnings

In this Sept. 27, 2009, file photo, Oakland Raiders quarterback JaMarcus Russell (2) is hit by Denver Bronco's Vonnie Holliday during the fourth quarter of an NFL football game in Oakland, Calif. Holliday, a defensive end for the Denver Broncos, likened the pounding his head takes in a game to "being in a car crash 20, 30 times a game." (AP Photo/Ben Margot
AP Photo/Ben Margot
The NFL will distribute a new poster to teams that warns of the dangers of concussions in much harsher language than before.

Traumatic brain injury "may lead to problems with memory and communication, personality changes, as well as depression and the early onset of dementia," the document reads. "Concussions and conditions resulting from repeated brain injury can change your life and your family's life forever."

NFL to Players: Wear More Padding
Survey: NFL Players Hide, Fear Concussions

The acknowledgment of such risks is a significant change from a pamphlet previously distributed to players, starting in 2007.

That pamphlet said: "Current research with professional athletes has not shown that having more than one or two concussions leads to permanent problems if each injury is managed properly."

60 Minutes: A Blow to The Brain

The new wording was first reported by The New York Times. NFL spokesman Greg Aiello confirmed the changed language Tuesday.

Aiello said the document was a joint effort of the NFL's and union's medial committees "and reflects their views after wide-ranging consultation with leading medical experts," including the Centers for Disease Control and Prevention.

"It is intended to present the most current and objective medical information on concussion and will be distributed to the players and clubs in the near future," Aiello said.

Watch a "60 Minutes" story on head injuries in football below:


Watch CBS News Videos Online