A concussion is a type of traumatic brain injury that impairs normal function of the brain.  It occurs when the brain moves within the skull as a result of a blow to the head or body.  What may appear to be only a mild jolt or blow to the head or body can result in a concussion.

Terms such as "ding" and "bell-ringer" are terms that were previously used to refer to "minor" head injuries and thought to be a normal part of collision sports.  Research has shown that a concussion is a brain injury and by no means minor.  Any suspected concussion must be taken seriously.  The athlete does not have to be hit directly in the head to injure the brain.  Any force that is transmitted to the head may cause the brain to bounce or twist within the skull, resulting in a concussion.

The sudden movement of the brain causes stretching and tearing of brain cells, damaging the cells and creating chemical changes to the brain.  Once this injury occurs, the brain is vulnerable to further injury and very sensitive to any increased stress until it full recovers.

After suffering a concussion, no athlete should return to play or practice on that same day.  An athlete should never be allowed to resume play following a concussion until symptom free & given the written approval to resume physical activity by an appropriate health-care professional.