Circadian rhythm
Circadian rhythms are cyclical changes in the body that occur at regular intervals, usually about 24 hours. They are associated with the cycle of day and night and regulate many physiological processes in the body, such as sleep, appetite, body temperature, hormone levels, etc.
In nature, circadian rhythms play an important role in the body's adaptation to the cycle of day and night. Sunlight stimulates the production of the hormone melatonin, which regulates the circadian rhythm. In the dark, less melatonin is produced, which leads to a decrease in body activity and a transition to sleep.
In humans, circadian rhythms also play an important role. For example, people who work night shifts often experience problems with sleep and overall health. This is because their circadian clock does not coincide with the natural day-night cycle, which is regulated by light and dark cycles.
In order to maintain a healthy circadian rhythm, it is necessary to maintain a daily and sleep schedule. It is also important to avoid excessive consumption of alcohol and caffeine, as they can disrupt circadian rhythms.
In addition, circadian rhythms can be disrupted in various diseases such as sleep apnea, diabetes, hypothyroidism, etc. Therefore, to maintain health, you need to monitor your circadian rhythm and consult a doctor if necessary.