Descriptive Epidemiology of Excessive Daytime Sleepiness

  • R. D’Alessandro
  • R. Rinaldi
  • L. Vignatelli
  • C. Tonon


Daytime sleepiness is the common experience of the tendency to sleep during the daytime. When this phenomenon is not invalidating, is justified by lifestyle and is sporadic, it may be considered a normal expression of our needs. If, however, the tendency to fall asleep during the day becomes excessive, undesired, inappropriate, disturbing and persistent, it becomes pathologic and may be referred to as excessive daytime sleepiness (EDS) [1–3]. EDS is being studied with increasing interest, since it is indicative of several diseases and has major familial and social effects.


Sleep Disorder Daytime Sleepiness Epworth Sleepiness Scale Excessive Daytime Sleepiness Sleep Complaint 
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Copyright information

© Springer-Verlag Italia, Milano 1997

Authors and Affiliations

  • R. D’Alessandro
    • 1
  • R. Rinaldi
    • 1
  • L. Vignatelli
    • 1
  • C. Tonon
    • 1
  1. 1.Unità di Epidemiologia, Istituto di NeurologiaUniversità di BolognaBolognaItaly

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