A doctor explains the difference between a concussion and bump on the head and when to seek medical attention when you hit ...

A concussion is a type of mild traumatic brain injury that occurs from a strong blow to the head. It can cause symptoms like headache, dizziness, fatigue, memory impairment, and mood changes.

A concussion occurs when you take a hit, jolt or movement that causes the brain to suddenly shift in your head. Although commonly associated with contact sports, the risk of obtaining a concussion can ...

Repeated hits to the head, even if they do not cause concussions, may cause lasting damage to the brain and even something known as chronic traumatic encephalopathy, growing scientific evidence has ...

For years, concussions were described as temporary disruptions in brain function that could not be seen on any medical test.