Maybe when you stayed up late to make up your homework when you were a student, or when you started working overtime late at night after work, you could not help thinking about the question, why do people sleep? Want to make up after staying up late, is this okay? What is the overall sleep situation in our country? What kind of sleep is qualified sleep?

Perhaps when you stayed up late to make up your homework in your school days, or when you started to work late at night after work, you could not help thinking about the question, why do people sleep? Want to make up after staying up late, is this okay? What kind of sleep is qualified sleep?

1. Why do we need sleep?

Sleep is a basic phenomenon of life. It is the same as why we eat and why we drink water. It is the basic function of maintaining the normal metabolism of our life. So it is necessary to have sleep. If sleep is deprived, it will cause our health problems, which may be mental problems, or it may directly lead to death. If a person does not sleep for three days, he may collapse, and if he does not sleep for five days, he may be life-threatening.

Teenagers and young people now spend less time sleeping, mainly because of exposure to electronic products and excessive nightlife, which reduces the sleep time of our teenagers. About 40% of us have poor sleep and do not meet the requirements.

2. What is unqualified sleep? Is it really healthier to go to bed early than to go to bed late?

Failure to meet the requirements means insufficient sleep time or problems with sleep quality. Normal people need seven to eight hours of sleep, too little or too much will have an impact on health. If you often do not go to bed until 12 o'clock, you have to get up to work at 6 o'clock. Obviously, a long time will have an impact on your health. Our healthy sleep time should be 7 to 8 hours, not too little, not too much, less than 6 hours will cause problems with brain function, more than 9 hours is also problematic. There are differences between individuals, but the overall situation is similar, but if you eat less, or if you exercise more, your sleep time can be shortened a bit. Why can it be shortened because your sleep quality has improved. If you eat a lot and become obese, or if you have very little exercise activity, you will have poor sleep quality, and you will need to extend your sleep time. So some people may sleep for 6 or 7 hours, but his sleep efficiency is very good, maybe he fell in bed for 7 hours to sleep. Some people have poor sleep efficiency. They may spend half an hour in bed before going to bed, and wake up for another half an hour in the middle, which may take 8 hours. Therefore, some people sleep very little time, but they are very energetic during the day, because their sleep efficiency is very high, and the short sleep time does not mean that they do not need to sleep or sleep less. There are differences between individuals, but the differences are not large. Very few people only sleep for 3 to 4 hours, so sleep efficiency is no longer acceptable. How to judge whether you have enough sleep, the most important criterion is that you are energetic and not dozing off during the day, work efficiency is high, brain function is normal, and there is no sense of fatigue, so that your sleep is suitable.

Is sleep from 10 am to 6 am really healthier than 2 am to 10 am?

Why do we advocate sleeping around 11 o’clock? It’s because the growth hormones and sleep-related hormones in our body begin to secrete at 11 o’clock. For example, when melatonin is secreted, we begin to feel sleepy, or when growth hormone begins to secrete, children sleep. Good development leads to good development, so this is important. Can I go to bed at 2 o'clock? When you go to bed at 2 o'clock, the peak of growth hormone or sleep-related hormone secretion has passed. The sleep structure and quality of sleeping at 2 o'clock is not as good as sleeping at 11 o'clock. The optimal sleep time of our human beings is to keep the same as the rhythm of the outside world. Unless you are on duty, you are not allowed to sleep at night, on duty at night, and sleep during the day. If this is not the case, it is best to follow the laws of nature. This is the most ideal. So we ancients also said that we work at sunrise and sleep at sunset. This is the truth. Because the secretion of sleep-related hormones in our body, including the secretion of growth hormone, is affected by the inertia of nature, we should try to sleep in accordance with the laws of nature.