The circadian cycle is a vital internal process that regulates your body’s functions on a roughly 24-hour schedule. This biological rhythm controls sleep-wake patterns, hormone secretion, metabolism, and even cognitive functions. Understanding the it allows you to align your lifestyle with your body’s natural timing, improving health and daily performance. What Is the Circadian Cycle? The term circadian cycle comes from the Latin circa (around) and diem (day), meaning a roughly 24-hour cycle. It is present in nearly all living organisms, including humans, animals, and plants. In humans, the circadian cycle influences many processes beyond sleep, such as body temperature,…