Arcady A Putilov
Patterns of Association of Health Problems with Sleep- Wake Timing and Duration
Health problems show a linear relationship with preferred (earlylate) sleep timing and a U-shaped with habitual (short-long) sleep duration. The reasons for the dissimilarity between the patterns of association of health problems with sleep timing and duration remain unknown. Self-scorings of depression, anxiety, somatization, and general health status were compared in 2103 respondents typed in accord with preferred sleep timing, habitual sleep duration, and preferred (short-long) wake duration. The strongest linear associations with health self-scorings was showed by preferred wake duration, and, after accounting for it, none of the associations between health and preferred sleep timing remained statistically significant. It seems that a medical condition can lead to either short sleep durations or short wake duration, and that short wake duration can lead, in turn, to long sleep duration and late sleep timing.
English 
Spanish 
Chinese 
Russian 
German 
French 
Japanese 
Portuguese 
Hindi