作者: Till Roenneberg , Anna Wirz-Justice , Martha Merrow
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摘要: Human behavior shows large interindividual variation in temporal organization. Extreme "larks" wake up when extreme "owls" fall asleep. These chronotypes are attributed to differences the circadian clock, and animals, genetic basis of similar phenotypic is well established. To better understand organization humans, authors developed a questionnaire document individual sleep times, self-reported light exposure, self-assessed chronotype, considering work free days separately. This report summarizes results 500 questionnaires completed inapilotstudy.Individualsleeptimesshowlargedifferencesbetweenworkand freedays,exceptforextremeearlytypes.Duringtheworkweek,latechronotypes