concussion

Concussion is usually defined as "temporary dysfunction of the central nervous system". It is generally a temporary loss of consciousness after the head is hit by mild violence, and then wakes up, and may forget recent events. Changes, no organic damage, transient neurological changes it may show may be related to pathophysiological changes caused by violent blows to the brain tissue, but in some cases of death due to concussion and boxers are repeatedly exposed to Chronic brain atrophy and even some serious neurological diseases (such as Muhammad Ali) occur after the impact.