A concussion may be caused by a blow, bump or jolt to the head, or by any fall or hit that jars the brain. This invisible injury disrupts the way the brain works by decreasing mental stamina, as the brain must work longer and harder even to complete simple tasks. Concussions may involve loss of consciousness, but the majority do not. All concussions are serious because they involve an injury to the brain.
Concussions can occur in any sport, but the potential for a concussion is greatest in athletic environments where collisions are common, such as soccer, football and hockey. It is important to remember that some athletes may not experience and/or report symptoms until hours or days after the injury. If you have any suspicion that your athlete has a concussion, you should keep the athlete out of the game or practice.
Remember: Sit them out when in doubt.