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A member asked:

Why when i sleep more than 8 hour i wake up with a headace?

A doctor has provided 1 answer

Several theories: Many ideas which means we probably don't know. But it is a fairly common complaint. Some theories include an imbalance of serotonin, sleep apnea causing low oxygen levels, dehydration, and build up of sinus pressure.

Answered 12/29/2012

5.4k views

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I always wake up with a painful headache. I drink lots of water and sleep approx 7-9 hours, how can I avoid the headaches?

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