A concussion is a serious injury to the brain resulting from the rapid acceleration or deceleration of brain tissue within the skull. Rapid movement causes brain tissue to change shape, which can stretch and damage brain cells. This damage also causes chemical and metabolic changes within the brain cells, making it more difficult for cells to function and communicate.
Causes & Risk Factors
Concussions can be caused by direct trauma to the head, such as from falling, getting hit or being in an accident. They can also occur as a result of rapid acceleration-deceleration of the head, such as in whiplash injuries or injuries related to a blast or explosion.
Symptoms
Confusion
Headache
Vision disturbances such as double or blurry vision
Dizziness or difficultly maintaining balance
Nausea or vomiting
Memory loss
Ringing in the ears
Difficulty concentrating