When concussions cause severe, long-lasting symptoms

Traumatic brain damage, known as a concussion, is caused by a blow to the head or a forceful shaking of the head and upper body. Every trauma alters how the brain works and causes some brain damage. Most concussions are minor, and many individuals don’t even know they’ve had one, especially if they weren’t unconscious for some time. However, research on concussions reveals that having several concussions frequently worsens the damage to a