Concussion (from the MayoClinic.com)

Concussions — Comprehensive overview covers symptoms, causes and treatment of this common brain injury.
Definition

Concussions range in significance from minor to major, but they all share one common factor — they temporarily interfere with the way your brain works. They can affect memory, judgment, reflexes, speech, balance and coordination.

Usually caused by a blow to the head, concussions don’t always involve a loss of consciousness. In fact, most people who have concussions never black out. Some people have had concussions and not even realized it.

Concussions are common, particularly if you play a contact sport such as football. But every concussion, no matter how mild, injures your brain. This injury needs time and rest to heal properly. Luckily, most concussions are mild and people usually recover fully.

Symptoms

The signs and symptoms of a concussion can be subtle and may not be immediately apparent. Symptoms can last for days, weeks or even longer.

The two most common concussion symptoms are confusion and amnesia. The amnesia, which may or may not be preceded by a loss of consciousness, almost always involves the loss of memory of the impact that caused the concussion.

Signs and symptoms of a concussion may include:

  • Confusion
  • Amnesia
  • Headache
  • Dizziness
  • Ringing in the ears
  • Nausea or vomiting
  • Slurred speech
  • Fatigue

Some symptoms of concussions are not apparent until hours or days later. They include:

  • Memory or concentration problems
  • Sensitivity to light and noise
  • Sleep disturbances
  • Irritability
  • Depression
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Published in: on November 18, 2009 at 8:44 pm  Leave a Comment  
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