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All domains of life feature diverse molecular clock machineries that synchronize physiological processes to diurnal environmental… Expand The interest in the systematic study of the circadian typology (CT) is relatively recent and has developed rapidly in the two… Expand Sleep and circadian rhythm disruption are frequently observed in patients with psychiatric disorders and neurodegenerative… Expand There is considerable epidemiological evidence that shift work is associated with increased risk for obesity, diabetes, and… Expand In October, 2007, 24 scientists from ten countries met at the International Agency for Research on Cancer (IARC), Lyon, France… Expand Humans show large differences in the preferred timing of their sleep and activity. This so‐called “chronotype” is largely… Expand Melatonin is a ubiquitous molecule and widely distributed in nature, with functional activity occurring in unicellular organisms… Expand Melatonin, hormone of the pineal gland, is concerned with biological timing. It is secreted at night in all species and in… Expand The circadian rhythm of pineal melatonin is the best marker of internal time under low ambient light levels. The endogenous… Expand Introduction Econometric analysis of long-run relations has been the focus of much theoretical and empirical research in… Expand