1, eliminate fatigue and restore physical strength: sleep is the main way to eliminate physical fatigue. Sleep is a good opportunity for gastrointestinal tract and its related organs to synthesize and produce human energy substances for activities. In addition, due to the decrease of body temperature, heart rate, blood pressure, respiration and some endocrine, the basal metabolic rate is reduced, so that physical strength can be restored.
2, protect the brain, restore energy: lack of sleep, manifested as irritability, excitement or listlessness, inattention, memory loss and so on. Long-term lack of sleep can lead to hallucinations. People who get enough sleep are energetic, quick-thinking and efficient. This is because the oxygen consumption of the brain is greatly reduced during sleep, which is beneficial to the energy storage of brain cells. So sleep is good for protecting the brain and improving brain power.
3. Enhance immunity and restore the body: Under normal circumstances, the human body can produce antibodies against various invasive antigen substances and remove them through immune reaction to protect human health. Sleep can enhance the body's ability to produce antibodies, thus enhancing the body's resistance; At the same time, sleep can also accelerate the self-healing of various tissues and organs. In modern medicine, sleep is often used as a treatment to help patients through the most painful period, which is conducive to the rehabilitation of diseases.
4. Promote growth and development: Sleep is closely related to children's growth and development. The baby's brain continues to develop for a long time after birth, and it is inseparable from sleep; And children grow faster during sleep, because plasma growth hormone can maintain a high level for several hours during sleep. Therefore, it is necessary to ensure that children get enough sleep and ensure their growth and development.
5. Delay aging and promote longevity: In recent days, many survey data show that healthy and long-lived elderly people have a good and normal sleep. Human life is like a burning flame. Regular burning makes life last. If it burns up and down, it will shorten the time and make people die young. Sleep time is like minimal flame burning, so it can delay aging and ensure longevity.
The reason for their longevity is also related to the dietary structure of their plant foods. The dietary structure of Changshou Village shows consistency-mainly cereals; Eat more beans, potatoes, corn and fruits, and eat less animal food. Among them, the consumption rate of Georgian grain in Transcaucasia is about 65%, and the consumption rate in Hotan, Xinjiang and Bama, Guangxi is as high as 80%. The residents of Changshou Village not only live on cereals, but also eat some fruits and nuts.