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What are causes of hypersomnia?

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There are several potential causes of hypersomnia, including:

  • The sleep disorders narcolepsy (daytime sleepiness) and sleep apnea (interruptions of breathing during sleep)
  • Not getting enough sleep at night (sleep deprivation)
  • Being overweight
  • Drug or alcohol abuse
  • A head injury or a neurological disease, such as multiple sclerosis or Parkinson's disease
  • Prescription drugs, such as tranquilizers or antihistamines
  • Genetics (having a relative with hypersomnia)
  • Depression

From: Sleep and Hypersomnia WebMD Medical Reference

SOURCE:  National Sleep Foundation.

Reviewed by Carol DerSarkissian on October 29, 2017

SOURCE:  National Sleep Foundation.

Reviewed by Carol DerSarkissian on October 29, 2017

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How do you diagnose hypersomnia?

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