Encyclopedia Article


A concussion can result from a blow to the head which jars or otherwise impacts the brain. Brain function may be impaired temporarily, although a concussion does not always cause unconsciousness. Some of the symptoms and effects of a concussion are nausea, vision or equilibrium disturbances, confusion, and temporary amnesia.

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"A diagram of the forces on the brain in concussion." by Patrick J. Lynch is licensed under CC BY

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