A concussion is a traumatic brain injury that affects your brain function. Effects are usually temporary but can include headaches and problems with concentration, memory, balance and coordination.Concussions are usually caused by a blow to the head. Violently shaking the head and upper body also can cause concussions.Some concussions cause you to lose consciousness, but most do not. It's possible to have a concussion and not realize itConcussions are particularly common if you play a contact sport, such as football. Most people usually recover fully after a concussion
- Your brain has the consistency of gelatin. It’s cushioned from everyday jolts and bumps by cerebrospinal fluid inside your skull.
- A violent blow to your head and neck or upper body can cause your brain to slide back and forth forcefully against the inner walls of your skull.
- Sudden acceleration or deceleration of the head, caused by events such as a car crash or being violently shaken, also can cause brain injury.
- These injuries affect brain function, usually for a brief period, resulting in signs and symptoms of concussion.
- This type of brain injury may lead to bleeding in or around your brain, causing symptoms such as prolonged drowsiness and confusion. These symptoms may develop immediately or later.
- Such bleeding in your brain can be fatal. That’s why anyone who experiences a brain injury needs monitoring in the hours afterward and emergency care if symptoms worsen.