What Are Circadian Rhythm Disorders? A circadian rhythm is your body’s internal 24-hour clock, and it controls your sleep-wake cycle and other body processes, such as eating and digestion. “Circadian” ...

Rhythm is most commonly associated with music but it infuses much of our daily lives without us noticing (Credit: Alamy) Rhythm plays an important role in how we perceive and connect with the world ...

Your circadian rhythm helps regulate your natural sleep-wake cycle. Here's how to reset it to improve your sleep, according to an expert. Mercey Livingston is a health and wellness writer and ...

Circadian rhythms are cycles in the body that occur roughly across 24 hours. In humans, circadian rhythms cause physical and mental changes in the body, including feelings of wakefulness and sleep.