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Having a brain seizure can be a terrifying experience. If you have a seizure more than once, you may have epilepsy, a problem with electrical activity in your brain.

So, what causes epilepsy?
For most people, the brain sends electrical signals throughout the body efficiently, in a coordinated way. In epilepsy, however, the normal pattern of electrical activity becomes disturbed. This causes the brain to be too excitable, or jumpy, and it sends out abnormal signals. The result is repeated seizures that can happen at any time.

Epilepsy seizures usually begin between ages 5 and 20, but they can happen at any age. Common causes include Stroke, or a mini-stroke called transient ischemic attack;  Dementia, or loss of brain function, such as Alzheimer's disease;  Traumatic brain injury;  Infections in the brain;  Brain problems you are born with;  or perhaps, a Brain tumor.

Some people with epilepsy may have simple staring spells, while others have violent, uncontrollable shaking and loss of consciousness. Before each seizure, some people may have strange sensations, such as tingling, smelling an odor that isn't really there, or emotional changes. This is called an aura.

Your doctor will perform a number of tests to find out if epilepsy is causing your seizures. One test, an electroencephalogram or EEG, checks your brain's electrical activity. Other tests can take detailed pictures of the part of your brain that is causing your seizures.

Your doctor will most likely start treating your epilepsy with medication. These medicines, called anticonvulsants, may reduce the number of seizures you have in the future. Sometimes, changing the diet of a child with epilepsy can help prevent seizures.

Your doctor will probably talk to you about making some changes in your life, such as reducing your stress, getting more sleep, and avoiding alcohol and recreational drugs.

Surgery to remove a brain tumor or abnormal blood vessels or brain cells may make the seizures stop. Another surgery can place a Vagus nerve stimulator in your brain. This device is like a pacemaker for your brain that limits the number of seizures you have.

For many people, epilepsy is a lifelong problem, and they'll always need to take anti-seizure medicines. There is a very low risk of sudden death with epilepsy. However, you, or someone else, can be seriously injured if you have a seizure while driving or operating equipment. If your seizures are uncontrolled, you should not drive.


Review Date: 10/25/2011
Reviewed By: Alan Greene, MD, Author and Practicing Pediatrician; also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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