Fatigue and sleep disorders.

  title={Fatigue and sleep disorders.},
  author={Kenneth L. Lichstein and Melanie K. Means and S L Noe and Robert Neal Aguillard},
  journal={Behaviour research and therapy},
  volume={35 8},
Fatigue has often been confused with sleepiness and has received little study as an independent symptom of sleep disturbance. To investigate if fatigue is a common and severe symptom in sleep disordered individuals, the Fatigue Severity Scale (FSS) was administered to 206 patients over a 12-month period at a sleep disorder center. Our sample averaged 4.8 on the 7-point FSS, which is in the severe fatigue range. High fatigue was present in a broad range of sleep disorders, but was particularly… CONTINUE READING