sleep-wake cycles

Sleep-wake cycles, also called circadian rhythms, are the body's natural 24-hour clock that regulates when we feel alert and when we feel sleepy. Influenced by light, hormones like melatonin increase at night to promote sleep and decrease during the day to promote wakefulness. These cycles help maintain health by coordinating various bodily functions, including hormone release, body temperature, and metabolism. Disruptions, such as irregular sleep schedules or exposure to artificial light at night, can affect sleep quality and overall well-being. Maintaining a consistent sleep routine aligned with natural light helps support healthy sleep-wake cycles.