Circadian rhythms are intrinsic 24-hour cycles that regulate physiological and behavioral processes in almost all organisms, from the simplest bacteria to humans. Governed by internal biological clocks, these rhythms help organisms anticipate and adapt to predictable environmental changes, particularly the day-night cycle. In humans, circadian rhythms influence a wide array of functions, including sleep-wake cycles, hormone secretion, metabolism, digestion, cognitive performance, mood, and overall well-being.
However, modern lifestyles—marked by irregular schedules, shift work, jetlag and constant exposure to artificial lighting—can disrupt these finely tuned rhythms. Such disruptions are linked to various health challenges, including sleep disorders, metabolic imbalances, mental health conditions, and chronic diseases, underscoring the urgent need to realign daily routines with our biological clocks to promote health and overall well-being…
