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Concussion

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Introduction
Concussion (minor traumatic brain injury) is the sudden but short-lived loss of mental function that occurs after a blow or other injury to the head.
Symptoms of concussion
Common symptoms of concussion include headache, nausea, loss of balance, memory loss and dizzness. Symptoms of concussion can be mild to severe.
Causes of concussion
Concussion occurs when a blow or impact to the head causes a sudden disruption to part of the brain known as the reticular activating system (RAS).
Diagnosing concussion
Concussion is often diagnosed in the accident and emergency (A&E) department, by a paramedic at the scene of an accident or by a trained official.
Treating concussion
If there are no signs or symptoms that suggest a more serious brain injury has taken place then most cases of concussion can be treated at home.
Complications of concussion
Post-concussion syndrome (PCS) is the term used to describe a collection of symptoms that can last for several weeks or months after the concussion.
Preventing concussion
There are a number of basic commonsense precautions you can take to reduce your risk of concussion.