What Is Insomnia?
Insomnia is the most common sleep complaint among people. Insomnia is defined as difficultly falling asleep, staying asleep, or both, resulting in inadequate length of sleep and/or poor quality of sleep, which may affect a person's ability to function during the day. Insomnia also may affect quality of life, work performance, and overall health. Insomnia is not a disease, but a symptom associated with a variety of medical, psychiatric, or sleep disorders.
Medically Reviewed by a Doctor on 1/8/2015
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