The Circadian Clock

The circadian clock is an internal biological system that regulates our sleep-wake cycle and other bodily functions over a 24-hour period. It responds to environmental cues like light and darkness, helping to synchronize our behaviors with day and night. This clock influences sleep patterns, hormone release, eating habits, and even temperature. Disruptions to the circadian clock—such as shift work or irregular sleep—can lead to health issues like sleep disorders, mood changes, and metabolic problems. Understanding and supporting our circadian rhythms is essential for overall well-being.