sleep-wake cycle
The sleep-wake cycle is a natural process that regulates when we feel awake and when we feel sleepy. It is influenced by various factors, including light exposure and the body's internal clock, known as the circadian rhythm. This cycle typically lasts about 24 hours and helps maintain a balance between sleep and wakefulness.
During the sleep-wake cycle, the body goes through different stages of sleep, including REM (Rapid Eye Movement) and non-REM sleep. These stages are essential for physical and mental restoration. Disruptions to the sleep-wake cycle can lead to issues such as fatigue and decreased cognitive function.