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Sleep-Wake Cycle - Page 2

Circadian Rhythms – NIGMS

Circadian rhythms include some of the physical, mental, and behavioral changes an organism experiences over a 24-hour cycle. Light and dark have the biggest influence on circadian rhythms, but food intake, stress, physical activity, social environment, and temperature also affect them. Most living

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Circadian Rhythm

Circadian Rhythm Your circadian rhythm is your body’s natural 24-hour clock. It keeps your body operating on a healthy wake-sleep cycle. Your circadian rhythm affects many other systems throughout your body. Most

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