A violent blow to your head and neck or upper body that causes your brain to slide back and forth forcefully against the inner walls of your skull.
A sudden acceleration or deceleration of the head, caused by events such as a car crash or being violently shaken, which causes brain injury
Ways to prevent brain concussions
Wearing seatbelts
Never drive under the influence of drugs or alcohol
Wearing helmet while riding bikes and motorcycles
Limiting amount of contact between athletes in sport practices
Wearing protective gears during sports games and practices
Teaching athletes proper techniques to avoid head hits