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10 Common Symptoms of Sleep Disorders

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Updated February 24, 2014

Written or reviewed by a board-certified physician. See About.com's Medical Review Board.

8 of 10

Inability to sleep

If you have difficulty falling or staying asleep, you may discover that the symptom of your sleep disorder is a simple inability to sleep. These symptoms are collectively termed insomnia. This may include a range of conditions, from acute insomnia to fatal familial insomnia. Diagnostic tests are available and there is significant help for insomniacs.

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  5. Insomnia is a Common Symptom of Sleep Disorders

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