Editorial
Paradoxical treatements
C. M. Shapiro

Considerations and possible consequences of shift work 
J. L. Hossain and C. M. Shapiro

Reviews
Improving decision making processes with the fuzzy logic approach in the epidemiology of sleep disorders
M. M. Ohayon

Insomnia and heart disease: a review of epidemiologic studies
S. Schwartz, W. McDowell Anderson, S. R. Cole, J. Cornoni-Huntley,  J.C. Hays and D. Blazer

Original Articles
A comparison of subjective estimates of sleep with objective polysomnographic data in healthy men and women 
F. C. Baker, S. Maloney and H. S. Driver

Chronic faìtigue syndrome in private practice psvchiatry: family historv of physical and mental health
N. A. Endicott

Predictors of subjective sleepiness induced by melatonin administration 
G. Jean-Louis, H. von Gizycki and F. Zizi

Are prescribed inedications effective in the treatment of insomnia complaints?
M. M. Ohayon, M. Caulet, L. Arbus, M. Biliard, A. Coquerel, J.-D. Guieu, B. Kullmann, F. Laffont, P. Lemoine, J. Paty, J. C. Pechadre, M.-F. Vecchierini and H. Vespignani

Evaluation of short-term nonpharmacological treatment of insomnia in a clinical setting
I. Verbeek, K. Schreuder and G. Declerck

Personality and social attitudes in chronic fatigue syndrome
B. Wood and S. Wessely

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