In this in-depth exploration, we decode how circadian rhythms take cues from external light-dark cycle to conduct body’s diverse mechanisms
Humans’ circadian rhythms, or internal clocks, are the roughly 24-hour cycles many body systems follow, usually alternating between wakefulness and rest. Image Courtesy: iStock
Humans live in a perpetual 24-hour rhythm. When the morning light falls upon the eye, it travels a path that culminates at the deepest corner of our brain. Known as Hypothalamus, this corner controls vital bodily functions like temperature, hunger, thirst and metabolism. Upon reaching here, the light stimulates brain cells which set off the body’s internal clock. As the clock begins to tick, a sense of wakefulness is induced.
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