Studies indicate that getting 7-8 hours of solid sleep each night improves health.
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Comments: 3
Some people need less sleep than 7-8 hours. The best way to tell how much sleep your body needs is to simply sleep as late as your body lets you--no alarm clock--during a vacation. If your body consistently awakens you after only 3-5 hours, then that's probably what you need. If so, you would be very unusual: most people who sleep only 3-5 hours a night find that they really need more.
-AF
Medical Billing Specialist
AMA Liason