Disease, Condition & Injury
Health Library disease & condition fact sheets provide comprehensive, yet concise evidence-based information on a variety of health conditions, diseases and injuries.
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Cluster Headache
Cluster headaches – Definition Cluster headache is a type of severe, recurring pain that is located on one side of…
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Fainting – Syncope
Fainting – Definition Fainting is the sudden loss of consciousness. Fainting – Causes In general, fainting is caused by decreased…
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Epilepsy – Seizure Disorder
Epilepsy – Definition A seizure happens when there are certain types of abnormal electrical activity in the brain. During a…
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Encephalitis
Encephalitis – Definition Encephalitis is swelling of the brain. The swelling may involve the whole brain, or just parts of…
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Dementia
Dementia – Definition Dementia is a general loss of mental abilities. It can include a loss of ability to think,…
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