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A circadian rhythm ( / sərˈkeɪdiən / ), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours. Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).
晝夜節律 （英語： circadian rhythm ）又稱 日夜節律 、 概日節律 、 日變週期 、 生理時鐘 （physiological clock），是一種生理現象，以 內源性 、持續的，呈現以約24小時為週期的變動；由 日變時鐘 （circadian clock）所驅動。 包括植物、動物、真菌等，都被觀察到有類似生理變化。 英語 circadian 源自拉丁語 circa，為大約、大概的意思；拉丁語 diem 是一天、一日之意。 合起來，在字面上的意思，是大約一天。
2024年3月15日 · Circadian rhythms are 24-hour cycles that are part of the body’s internal clock, running in the background to carry out essential functions and processes. While the body’s internal clock is naturally aligned with the cycle of day and night, travel, work, or an underlying issue can disrupt your circadian rhythm.
晝夜節律 （英語： circadian rhythm ）又称 日夜節律 、 概日節律 、 日變週期 、 生理時鐘 （physiological clock），是一種生理現象，以 內源性 、持續的，呈現以約24小時為周期的變動；由 日變時鐘 （circadian clock）所驅動。 包括植物、動物、真菌等，都被觀察到有類似生理變化。 英语 circadian 源自拉丁语 circa，為大約、大概的意思；拉丁语 diem 是一天、一日之意。 合起來，在字面上的意思，是大約一天。
2023年12月11日 · What Are Circadian Rhythms? Circadian rhythms are 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.
2023年5月1日 · Circadian rhythm is the 24-hour internal clock in our brain that regulates cycles of alertness and sleepiness by responding to light changes in our environment. Our physiology and behavior are shaped by the Earth’s rotation around its axis.
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 people’s circadian rhythms are automatic, but certain factors
