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| Hypersomnolence is excessive sleepiness. People with hypersomnolence, as opposed to fatigue, often fall asleep unintentionally. Most people require at least 7 hours of sleep per night and often closer to 8, men generally requiring less than women. It is suspected that CNS hypersomnolence is related to narcolepsy. The major difference is that CNS patients do not show cataplexy or the presence of dreams (REM sleep) during nap opportunities. Diagnosis & Tests If lack of sleep is a problem, total sleep time should be increased before other diagnoses are considered or while other possibilities are being explored. Severe depression and drugs causing sleepiness should also be excluded. If sleep time appears adequate, sleep disorders from the hypersomnia group should be suspected. |
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