Sleeping is a kind of physiological behavior, and it is a necessary rest state for the human body to maintain life.
1. What is sleep?
Sleeping is a natural reaction of the body, but staying in a clean, dark and quiet environment. Endogenous substances secreted by the brain will cause changes in EEG, and the whole person is in a state of repair and charging.
2. What is the function of sleep?
Sleep can promote cell metabolism and repair growth; Conducive to memory consolidation and energy supplement; Stabilize emotions, enhance immunity, and prevent diseases and premature aging.
3. What are the stages of sleep?
Sleep is divided into two parts: rapid eye movement sleep and non-rapid eye movement sleep, in which non-rapid eye movement sleep is divided into three stages: 1, 2, 3. After falling asleep, it will first reach the stage of N 1, and then reach the stage of N2. The deepest sleep stage is N3 sleep, also known as "slow wave sleep". At this time, the physiological functions such as heartbeat and breathing are obviously reduced, and it is easy to be awakened.
4. How long should adults sleep?
The average adult should sleep 7-9 hours a day, but in fact, everyone needs different sleep time, which should be adjusted according to their physical condition, workload and changing physiological cycle.
5. What effect does irregular work and rest have on sleep?
Irregular work and rest will lead to insomnia, fatigue, reflex headache, depression and other physical problems, and will also have an impact on mental health, such as emotional instability, memory impairment, decreased judgment and reduced learning efficiency.
6. What are the good sleep habits?
Good sleep habits include: keeping up and going to bed regularly; Put an end to drinking a lot of water or alcohol before going to bed, ingesting too many stimulants such as caffeine, and avoiding using screens with blue light such as electronic products; Relax before going to bed and do relaxation training for about half an hour.
In a word, sleep quality is closely related to quality of life. Establishing good sleep habits and arranging work and rest time reasonably are conducive to the maintenance of physical and mental health.