Concussions in Australian sport

Head injuries in sports of any level (junior, amateur, professional) are the most dangerous kind of injuries that can occur in sport, and are becoming more common in Australian sport. Concussions are the most common side effect of a head injury and are defined as "temporary unconsciousness or confusion and other symptoms caused by a blow to the head." A concussion also falls under the category of Traumatic Brain Injury (TBI).

Source: Wikipedia — Concussions in Australian sport (CC BY-SA 4.0)