Zirkadianer Rhythmus
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<timefyi-glossary slug="circadian-rhythm"></timefyi-glossary>Definition
Der interne biologische Zyklus von etwa 24 Stunden, der Schlaf, Wachheit und viele physiologische Prozesse reguliert. Zirkadiane Rhythmen werden durch Lichtexposition angetrieben und täglich durch Umweltsignale zurückgesetzt.