Hazards of Oversleeping

Headaches. For some people prone to headaches, sleeping longer than usual on a weekend or vacation can cause head pain. Researchers believe this is due to the effect oversleeping has on certain neurotransmitters in the brain, including serotonin. People who sleep too much during the day and disrupt their nighttime sleep may also find themselves suffering from headaches in the morning.

Depression. Although insomnia is more commonly linked to depression than oversleeping, roughly 15% of people with depression sleep too much. This may in turn make their depression worse. That's because regular sleep habits are important to the recovery process. Need another reason not to overdo the ZZZs when you're blue? ? In certain instances, sleep deprivation can have a temporary antidepressant effect.

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