Part of the award winning public television series Healthy Body/Healthy Mind. Over 40 million American adults suffer each year from a variety of chronic, long-term sleep disorders. There are more than 70 different sleep disorders that are usually classified into three major categories: lack of sleep, or insomnia; disturbed sleep, such as obstructive sleep apnea; and too much sleep, known as narcolepsy. Learn more about sleep disorders and how they can be easily managed once they are diagnosed.moreless
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