A concussion is a brain injury that is sustained as a result of a hit to the head, or serious injury. Concussions have a wide variety of repercussions and symptoms.
Prevention:
Educate yourself about concussions so that you can be prepared if you sustain a head injury
Center for Disease Control and Prevention Concussions website
If you are an athlete, or even just an active individual you should get a baseline ImPACT test. ImPACT® testing is a vital tool for doctors to determine when it is safe to return to play.
ImPACT® Testing and Computerized Neurocognitive Assessment Tools website can help you find a location that will administer the testing