The Whats, Whys, Dos, and Don'ts of concussions. I think this does a good job at explaining the basics of concussions including what to expect and what they are.
Can science solve football’s concussion crisis?
Can Science Solve Football's Concussion Crisis?
With almost 46% of the players in the league admitting that they have suffered a concussion at some point in their career, and 80% voicing concerns over brain injuries in the future, the issue has become a polarizing one.