What is causing excessive daytime sleepiness?

  title={What is causing excessive daytime sleepiness?},
  author={Mark W. Mahowald},
  journal={Postgraduate Medicine},
  pages={108 - 123}
  • M. Mahowald
  • Published 1 January 2000
  • Medicine
  • Postgraduate Medicine
PREVIEW Many people have a temporary spell, often in early afternoon, when they feel drowsy. This passing desire for a quick nap is completely different from excessive daytime sleepiness, which is a much more significant problem. Considering the potentially dire personal and economic consequences of falling asleep unintentionally or at inappropriate times, excessive daytime sleepiness must be taken very seriously. A thorough evaluation, as described by Dr Mahowald, virtually always leads to a… 
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