The concept of 'circadian rhythm' refers to the internal biological clock that regulates the sleep-wake cycle and other physiological processes over a 24-hour period. Recent research has revealed that this rhythm is not solely controlled by the suprachiasmatic nucleus in the brain, but also by peripheral clocks in organs such as the liver and muscles. These peripheral clocks can be influenced by feeding patterns, exercise, and temperature, independent of light cues. Disruption of circadian rhythms, often caused by shift work or jet lag, has been linked to metabolic disorders, cardiovascular diseases, and even cognitive decline. Understanding the interplay between central and peripheral clocks is crucial for developing interventions to mitigate these health risks.
❓ 지문에 따르면, 다음 중 일주기 리듬에 대해 옳은 설명은 무엇인가?
A. A. 그들은 뇌의 시교차상핵(suprachiasmatic nucleus)에 의해 독점적으로 조절됩니다.
B. B. 말초 시계는 섭식 및 온도와 같은 외부 요인의 영향을 받지 않는다.
C. C. 일주기 리듬의 교란은 대사 및 심혈관 문제에 기여할 수 있다.
D. D. 빛은 모든 생체 시계에 영향을 미치는 유일한 환경적 신호이다.
✅ 正确答案
C. Disruptions in circadian rhythms may contribute to metabolic and cardiovascular problems.
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