• Publications
  • Influence
Life between Clocks: Daily Temporal Patterns of Human Chronotypes
Human behavior shows large interindividual variation in temporal organization. Extreme “larks” wake up when extreme “owls” fall asleep. These chronotypes are attributed to differences in theExpand
A marker for the end of adolescence
Abstract Between childhood and adulthood, we go through puberty and adolescence. While the end of puberty is defined as the point of cessation of bone growth (epiphyseal closure; girls: 16 y; boys:Expand
Social Jetlag: Misalignment of Biological and Social Time
Humans show large differences in the preferred timing of their sleep and activity. This so‐called “chronotype” is largely regulated by the circadian clock. Both genetic variations in clock genes andExpand
Epidemiology of the human circadian clock.
Humans show large inter-individual differences in organising their behaviour within the 24-h day-this is most obvious in their preferred timing of sleep and wakefulness. Sleep and wake times show aExpand
Social Jetlag and Obesity
Obesity has reached crisis proportions in industrialized societies. Many factors converge to yield increased body mass index (BMI). Among these is sleep duration. The circadian clock controls sleepExpand
Comparison of the Munich Chronotype Questionnaire with the Horne‐Östberg's Morningness‐Eveningness score
We report on results from an Internet survey of sleeping habits in a Dutch population using the Munich Chronotype Questionnaire (MCTQ), supplemented with the Horne‐Östberg Morningness‐EveningnessExpand
Depression Scores Associate With Chronotype and Social Jetlag in a Rural Population
In public health, mood disorders are among the most important mental impairments. Patients with depressive episodes exhibit daily mood variations, abnormal patterns in sleep-wake behavior, and in theExpand
The Human Circadian Clock's Seasonal Adjustment Is Disrupted by Daylight Saving Time
A quarter of the world's population is subjected to a 1 hr time change twice a year (daylight saving time, DST). This reflects a change in social clocks, not environmental ones (e.g., dawn). TheExpand
The human circadian clock entrains to sun time
Document S1. Supplemental Experimental Procedure and One FigurexDownload (.05 MB ) Document S1. Supplemental Experimental Procedure and One Figure
Social jetlag and obesity.
Obesity has reached crisis proportions in industrialized societies. Many factors converge to yield increased body mass index (BMI). Among these is sleep duration. The circadian clock controls sleepExpand
...
1
2
3
4
5
...