How much does sleep help the human body?

Sleep is essential for the human body, and about one-third of a person's life is spent in sleep.

When the human body is asleep, external activities stop, the whole body relaxes, and blood is mainly concentrated in various organs. Under the condition of sufficient blood supply, the organ repairs and replenishes its own interior, and conscientiously does the work it should do. In other words, when sleeping, if each organ can be replenished with sufficient energy, they can perform their best working condition.

When the time of sleep and the quality of sleep are not guaranteed for a long time, the organs will not be repaired and replenished in time, and over time, the function of the organs will decline, and various diseases will take advantage of the void.

After sleeping enough, deep and waking up naturally, what is brought to the body is relaxation and comfort of the whole body, quick thinking, full of energy, stable and comfortable mood, smooth bowel and bowel movements, great appetite, **ruddy, shiny and elastic. These are the best external manifestations of sufficient blood in the human body, smooth meridians, and normal function of various organs in the body, and they are also the criteria for judging physical health.

You can exercise when you want to sleep for 3 days, and you can inhibit sleep a little more, and you will know the benefits of sleeping. However, the repair of the human body is done in sleep.

When you sleep, your liver is detoxified, and your brain, muscles, and more are rested!

Sleep is a very good thing for cuties, and it will be good to get enough sleep**.

Let me cite some experiments to illustrate.

A study of nearly one million people over the age of 30 found that people who regularly slept less than four hours a day were three times more likely to die within six years than those who slept seven or eight hours a day.

2. A 1983 study conducted by the Naval College of Health Sciences in San Diego found that people who slept 5 to 7 hours a day performed worse in all performance evaluation measures than those who slept more than 7 hours a day. Overall, people who don't sleep well get fewer promotions in their careers, lower pay scales, fewer referrals to work longer, have higher turnover rates, and are more likely to be hospitalized in the course of work.

One study found that women who slept an average of five hours a night were 39 percent more likely to develop heart disease than those who slept eight hours a night.

Another study found that men who slept only four hours on two consecutive nights had changes in their hormone levels, especially a decrease in leptin and an increase in ghrelin, which made them feel hungry and want to eat carbohydrate-rich foods such as cakes, candy, ice cream and pizza. Researchers believe that frequent sleep deprivation is associated with obesity.

Finally, I would like to say that it is true that a small number of people only need 4-5 hours a day, but most people feel this way, which is very embarrassing. And there's no way to train our body to reduce its own sleep needs.

I think you should shorten your sleep time because you want to have more time to work or study, but Einstein should sleep at least 10 hours a day, which means that your work achievements or academic performance may not have anything to do with the length of sleep, but after enough sleep, your attention and willpower will be better, and you can better complete the tasks you want to accomplish.

Relaxation and rest have great benefits for energy recovery, energy accumulation, recovery from physical fatigue, and physical and mental pleasure.

In general, sleep has the benefits of relieving fatigue, enhancing immunity, promoting growth and development, and delaying aging for the body, as follows:

1.Relieve fatigue: Sleep can make the body and brain enter a state of relaxation and rest, which can make the body and brain get full rest and recovery, and can relieve fatigue to ensure the spirit and vitality of the next day.

2.Enhance immunity: Sleep can regulate the body's hormone secretion, and can also enhance the body's ability to produce antibodies, enhance the body's resistance, thereby enhancing immunity.

3.Promote growth and development: Sleep can promote the body's metabolism, which has the benefit of promoting growth and development for children and adolescents.

4.Delay aging: Sleep is conducive to the full rest of human organs, so that the body's repair ability can be fully exerted, and can delay aging to a certain extent.

1 3 of a person's life is spent in sleep, sleep is very important to people, and there are five main benefits of sleep to people:

1. Be able to restore energy, physical strength, and conserve energy.

2. Promote the excretion function of metabolites.

Third, the growth of immunity is carried out in sleep, and the immunity is reduced during various activities during the day, and the function of immunity can be gradually restored only in the state of sleep, so the immune function of long-term insomnia is low, and it can suffer from a variety of diseases.

Fourth, it is very important to promote growth and development, especially for adolescents. It is very important for adolescents to promote physical growth and development during sleep, and long-term sleep is not good, which is also very detrimental to the growth and development of adolescents.

Fifth, the strengthening of cognitive function, the organization of brain information, the strengthening of memory, etc., have been greatly strengthened in the state of sleep, that is to say, the level of intelligence of the brain has been improved.

To put it simply, the above five are the benefits of sleep, so it is very important to ensure that you get a natural, normal sleep every day.

Sleeping too long will generally affect the stomach, affect heart function, reduce energy, and lead to obesity and other harms.

1. Affect the stomach: sleeping too long will affect the stomach, because the food in the stomach needs a certain amount of time to digest, if the sleep time is too long, there is no food in the stomach, but the gastric juice is still continuously secreted, and the secreted gastric juice will affect the gastric mucosa, which may cause gastritis and other diseases.

2. Affect heart function: Sleeping too long will also hurt the heart, because long-term sleep will affect the normal operation of the heart. As a result, the contractility of the heart decreases, and it is easy to cause a rapid heartbeat during exercise.

3. Decreased energy: When sleeping for too long, the central nervous system will be in a state of inhibition, causing people to feel dizzy and lose energy even after waking up, which will affect daily life.

4. Cause obesity: Sleeping too long can also lead to tiredness, fatigue, and decreased metabolic rate. Due to sleeping too long, the beating of the human heart will gradually slow down, so the metabolic rate will decrease, and the muscles will also relax, which can easily lead to obesity.

Maintain a good and regular routine in your daily life.

When people sleep, they can get enough rest in the brain and organs and muscles of the whole body, so as to ensure recovery and normal work, study and life. Newborns sleep an average of 16-20 hours a day; Sleep gradually decreases during infancy, sleeping 9-12 hours a day at the age of two; Adults sleep for 6-9 hours, and it is generally considered that about 7 hours is the most appropriate; Older people may sleep less, sleeping about 6 hours a day. There is also a change in the cycle of sleep-wakefulness, with the newborn cycle changing 5-6 times a day, and the infant gradually decreasing, to about 1-2 sleeps a day in the child.

However, it is important to note that the quality of sleep is not only based on the time, but also on the condition of each person's sleep. If you fall asleep quickly, sleep deeply, and don't dream much, you may be able to fully regain your energy after 6 hours of sleep. People who fall asleep slowly have relatively shallow sleep, easy to wake up, and often dream, and it may be difficult to achieve the effect of physical and mental recovery no matter how long they sleep.

Adults sleep an average of 6-8 hours a day, which is usually the optimal time, but this is not absolute and varies from person to person.

In addition to sleep time, the quality of sleep is also particularly important, some people who sleep ***, sleep 5-6 hours can meet the needs of sleep. Some people slept for 8 hours, but still had a feeling that they hadn't slept enough, and still couldn't meet the needs of work and study the next day. Normal people's sleep is divided into light sleep and deep sleep, and only enough deep sleep can allow the brain and body to get sufficient rest and recuperation.

People with high sleep quality sleep more deeply, and only 5-6 hours of sleep can meet the needs of the next day's work and life, and they are still full of energy. Some people have more light sleep, always feel like they are dreaming, and need to use sleep time to remedy the lack of sleep quality. If daytime sleepiness does not occur the next day, it means that the time of sleep is appropriate for the individual.

It is advisable to eat a small dinner about two hours before going to bed, do not drink too much water, as constantly going to the toilet at night can affect the quality of sleep, and do not eat spicy, oil-rich foods at night, as these foods can also affect sleep.