Junior Seau is one of several former NFL players to commit suicide in recent years. An autopsy later revealed brain damage consistent with concussion related head trauma. The NFL's fame and revenue continue to increase, however so do concussion problems.
 
http://www.theverge.com/2014/1/31/5364378/can-nfl-survive-football-concussion-crisis

Former NFL Star: Slurred Speech From Concussions Cost Me TV Job

 

Cleveland Browns legend Bernie Kosar contends he's been removed of commentating the games because of slurred speech he attributes to "a direct result of the many concussions I received while playing in the NFL." This article show how concussions can greatly affect your life on and off the field even 20 years after retirement.

 

http://www.huffingtonpost.com/2014/04/24/bernie-kosar-concussions-tv-job_n_5207002.html

Injury Report vs. actual concussion count

As you can see, the numbers look slightly better from 2012 to 2013. Still the numbers of concussions that go undiagnosed are far too great and dangerous for the players.


http://www.pbs.org/wgbh/pages/frontline/sports/concussion-watch/what-weve-learned-from-two-years-of-tracking-nfl-concussions/

This picture shows that the NFL is trying to hide information on NFL concussions so that it can still bring in all of the money that it does.

http://www.drewlitton.com/?p=5613

According to these statistics 85% would play through a concussions. While a big percent is saying that the NFL is not committed to the player safety.

http://espn.go.com/nfl/story/_/id/10358874/majority-nfl-players-play-super-bowl-concussion-espn-survey

This image shows some of the pressures that nfl players are faced with when getting concussions



http://sundial.csun.edu/2013/10/nfl-concussion-crisis-in-football-is-deadly/

http://www.pbs.org/wgbh/pages/frontline/sports/concussion-watch/what-weve-learned-from-two-years-of-tracking-nfl-concussions/
This article from Pbs does a great job of showing stats from the past two NFL seasons.

Sport Science: NFL Concussions and helmet to hemet collisions

Sports Science does a great job showing how the concussions actually take place and how it impacts your brain.

PBS 2013-14 season in review

http://www.pbs.org/wgbh/pages/frontline/sports/concussion-watch/nfl-concussions-the-2013-14-season-in-review/
This is a great website showing the 2013-2014 season concussion events.