A concussion can occur from a blow to the head or body that causes the brain to move rapidly back and forth within the skull. It is a brain injury that causes changes in how the brain functions, leading to symptoms that may include :
Difficulty concentrating or remembering;
Depression or irritability; and
Drowsiness or difficulty falling asleep.
Though concussions are common sport injuries, particularly among children and adolescents, their sometimes subtle symptoms may go unnoticed. Without identification and proper management, a concussion can result in permanent or severe brain damage.
Concussion Protocol Resource.pdf