CIRCADIAN RHYTHM Meaning and
Definition
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Circadian rhythm refers to the natural, internal process that regulates the timing of various biological functions and physiological processes in living organisms. It is a 24-hour cycle that influences the sleep-wake pattern, hormone production, body temperature, metabolism, and other essential bodily functions.
This rhythm is governed by an internal biological clock, mainly located in the hypothalamus of the brain, known as the suprachiasmatic nucleus (SCN). The SCN receives signals from light-sensitive cells in the eyes, which help synchronize the body's internal clock with external cues such as daylight and darkness.
The circadian rhythm governs the sleep-wake cycle, making individuals feel naturally more alert during daylight hours and drowsy at night. Disruptions to this rhythm, such as jet lag or shift work, can result in sleep disturbances, impaired cognitive functions, digestive problems, and mood disorders.
Research suggests that maintaining a consistent sleep schedule, exposure to natural light during the day, and avoiding excessive exposure to artificial light at night can help regulate the circadian rhythm and improve overall well-being. Along with sleep patterns, the circadian rhythm also affects various bodily functions including digestion, hormone release, and cellular repair processes.
Understanding and respecting the circadian rhythm is crucial for promoting optimal health and well-being in both humans and other organisms as it plays a significant role in maintaining biological processes and ensuring their proper synchronization with the external environment.
Common Misspellings for CIRCADIAN RHYTHM
- xircadian rhythm
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Etymology of CIRCADIAN RHYTHM
The word "circadian" is derived from the Latin words "circa" meaning "around" and "dies" meaning "day". Hence, "circadian" essentially translates to "around a day".
The term "rhythm" is from the Greek "rhythmos" meaning "movement in time". When combined, "circadian rhythm" refers to the natural physiological cycles that occur approximately every 24 hours, regulating various biological processes in living organisms.
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