01.06.2019 | Editorial
Siesta: Still an Enigma
verfasst von:
Ravi Gupta, Seithikurippu R. Pandi-Perumal
Erschienen in:
Sleep and Vigilance
|
Ausgabe 1/2019
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Excerpt
Napping in the daytime is common among people across the globe, especially those living in warm climate, e.g., Asia, Africa, Mediterranean, and Latin America [
1]. In addition, day-time napping has been reported to be influenced by genetic factors. One of the studies among dizygotic twins suggested that heritability accounted for 65% chances of taking a siesta and 61% chances of day-time sleep duration [
2]. Thus, little room is left for environmental factors and this study showed that what appears to be cultural could actually be genetic. However, the more important issue is the fact that day-time napping may result from various pathological conditions, e.g., inadequate sleep duration at night, sleep disorders resulting in poor sleep quality at night, and, finally, central disorders of hypersomnolence [
3]. A recent study has shown that most of the daily naps result from sleep deprivation [
4]. These factors have an independent effect on the outcome variables, e.g., mood, cognition, cardiovascular health, and metabolic parameters. …