How much deep sleep is healthy?

In today's society, many people have encountered sleep disorders. There are many manifestations of sleep disorders, the most common of which is insomnia. Many people just can't fall asleep when they lie in bed. Another big problem is that the sleep is relatively shallow. If a person's sleep is very shallow, it is easy to be awakened by the surrounding sounds and lights. Maybe you have slept for a long time, but it still doesn't play the role of sleep. Therefore, it is important to have deep sleep. How much sleep a day is good for your health?

How much deep sleep is healthy?

Sleep time refers to a natural physiological phenomenon of all living things, including humans and animals. It is a natural and usually regular temporary suspension of consciousness. During this period, the body's strength is restored. During this period of time, one can close his eyes and rest, and the cerebral cortex is in a resting state.

It is also a process for various organs to detoxify and rest. It is not a perpetual motion machine, so sleep is necessary, but it varies from person to person. I would like to remind everyone that lack of sleep will accelerate aging, which is especially important for women. Here is a detailed introduction:

Generally speaking, the normal sleep time for normal people is 6 to 8 hours (10 hours for the elderly and children, and longer for infants).

Sleeping time is slightly different for different people:

1. It is best for children to go to bed before 20:30 at night because they are growing and their organs need sufficient rest.

2. Teenagers should go to bed around 10pm. This is even more important for people who work or study, as it will improve their immunity, thinking ability, and reaction ability, and keep the brain in the best condition.

3. For the elderly, it is better to go to bed between 21:00 and 22:00 at night.

As the saying goes, "The last thirty years you can't sleep." As you age, your ability to sleep will gradually decline, your sleep time will gradually shorten, and your sleep quality will become lower and lower. Therefore, the elderly should not pursue a longer sleep time. Six hours of sleep a day is best. After 6 hours of sleep, the elderly's heart rate will drop to the basic rate, metabolism will begin to slow down, blood circulation activity will begin to decrease, muscles will become loose, and the whole body will begin to lose strength. The longer the elderly sleep, the more their physical fitness declines, and the more serious the physical and mental aging phenomena become. Therefore, the elderly should not sleep more than 6 hours a day and night.

4. For those who love beauty, they must go to bed before 2 am because the skin metabolizes before 2 am. The time for beauty sleep is from 10pm to 2am.

Sleep is closely related to beauty. During deep sleep, the secretion of growth hormone increases, which enhances the circulation of skin capillaries. The secretion and clearance process is accelerated, which speeds up skin regeneration, making it moisturized and elastic. Therefore, sleep is beneficial to skin beauty. On the contrary, lack of sleep, especially lack of deep sleep, will lead to poor blood flow in the skin capillaries, skin cells will not get enough nutrition, facial skin will become dull and pigmented, and the capillaries around the eyes will be more prone to bruising, resulting in dark circles and increased wrinkles at the corners of the eyes. Therefore, people are advised not to compress their sleep due to busy work. Some people call deep sleep "beauty time".

Therefore, people's sleep time should not be too long. 7-8 hours a day and night is enough for adults. If you want to gain health by increasing sleep time, it will be counterproductive, increase disease and shorten life.