The circadian rhythm is an internal biological rhythm that regulates physiological processes in humans and animals. This rhythm is repeated approximately every 24 hours and is consistent with the cycles of day and night. The main biological clockwork that controls circadian rhythms is the so-called “clock gene” or PER gene, which regulates a variety of biological functions.

Circadian rhythms affect many aspects of our lives, including sleep, wakefulness, appetite, body temperature, and even mood. They go a long way in maintaining health and wellness, as they can be disrupted by various factors such as insomnia, jet lag or poor eating patterns. Various studies and treatments also take into account circadian rhythms to better manage diseases and optimize overall health.