A concussion is a brain injury that results from a blow to the head.  During impact the brain pounds against the inside of the skull. The movement or rotation of the brain at various speeds can cause shearing that disrupts or damages nerve cells.  Some people lose consciousness during a concussion.

Q: What happens after a concussion?

Immediately after a concussion, many people experience headaches, dizziness, fatigue, and fogginess. Some report that smells and tastes are abnormal. It is also common to suffer memory loss, problems concentrating, and changes in mood. There is considerable overlap in traumatic brain injury symptoms. For example, a feeling of “fogginess” may be caused by headaches, but may also be impacted by the inability to sleep well after a concussion or taking various medications.

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