Day 72 of 365
March 13
❤️
Health Circadian Rhythms
Your body operates on roughly 24-hour circadian rhythms controlled by the suprachiasmatic nucleus in the hypothalamus. These internal clocks regulate sleep, hormone production, body temperature, and metabolism. Light exposure synchronizes circadian rhythms to the external environment. Disrupted circadian rhythms from shift work or jet lag increase risks of obesity, diabetes, depression, and cancer. The 2017 Nobel Prize recognized circadian rhythm discoveries.
💡 Did you know?
Circadian rhythms persist even without external time cues - people in caves without clocks maintain roughly 24-hour cycles!
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