Content preview:
As the saying goes, "Sleep well every day and you will never get old." This is because almost one-third of people's life is spent in sleep, and in the state of sleep, the nervous system, digestive system and endocrine system of the human body can get a good rest, thus restoring the physical strength consumed by daytime work.
For this reason, Shakespeare also strongly praised: "Sleep is the first good meal in life." In addition, Mr. Zhang Xueliang, who is over 100 years old, was asked about the way of keeping in good health and replied, "I don't have any special way of keeping in good health, but I can sleep and I know how to sleep." Although Mr. Zhang Xueliang didn't say anything amazing, he told the true meaning of health preservation, that is, to have enough and high-quality sleep.
According to the research of sleep experts, insomnia will not only reduce people's intelligence, but also affect people's daily work, and long-term lack of sleep will easily make people's immunity extremely decline. If a person often sleeps less than six and a half hours, it is not only easy to overdraw his health, but also easy to form a "sleep deficit", which accelerates physical aging and shortens people's life span.
According to authoritative research, there is a biological clock that controls sleep in the human body, which is located in the hypothalamus and determines the length of sleep of people of different ages. For example, a newborn. ...