Excessive sleepiness where one has trouble staying awake during the day, can fall asleep at anytime, has lack of energy, and has trouble thinking clearly.

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Causes include narcolepsy, sleep apnea, sleep deprivation, weight gain, drug or alcohol abuse, head injury, neurological disease (such as multiple sclerosis), prescription drugs (tranquilizers), or genetics.

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Treatment

• Stimulants

• Antidepressants

• Provigil, Xyrem, etc.

• CPAP

• Sleep Hygiene

• Elimination of alcohol and caffiene