What are the effects of sleep on people?

Researchers in the United States have done experiments. The results showed that if a person did not sleep for 40 consecutive hours, the mental ability to process numbers, correctly say the name of a color, and recall a certain event would be significantly reduced. If you don't sleep for 50 hours, your mobility, physical strength, personality and other aspects will decrease; If the subject is placed alone in a room, the subject will experience psychotic hallucinations and child-like behavior; If you don't sleep for 70 hours in a row, your concentration and feelings will be paralyzed; After 120 hours, the person will fall into a state of insanity.

This is the result of experiments that artificially prevent sleep from sleeping, and although the data is extreme, it shows how important sleep is to a healthy human life. Even if you don't stay up all night, if you don't get enough sleep, your attention, feelings, and thinking ability will be greatly reduced.

So, if you get enough sleep, you won't take a nap?

It is often said that about 8 hours of sleep is enough, but it is doubtful whether this is true. Maybe the person would have needed more sleep.

According to experiments, if children in their teens were given 10 hours of sleep, they would not take a nap at all during the day. And after reaching your 20s, even if you sleep 10 hours at night, you will feel sleepy during the day. This tendency is even stronger in old age.

In addition, some people have to take a nap as soon as they drink alcohol, which seems to be mainly due to lack of sleep. According to experiments, people who get enough sleep at night do not feel sleepy during the day, no matter how much alcohol they drink. If you are very young and during the day, when it is not supposed to be bedtime, then alcohol is by no means the cause of napping.

Humans and other mammals have sleep and wake cycles, which shows that sleep itself is very important to the physiological function of a person's body. If you don't get enough sleep, there may be some physical changes, such as upset, anxiety, or some changes in other organs, such as high blood pressure, so the importance of sleep is very great. So how do you get a good night's sleep?

Clause. 1. Usually have a regular schedule and rest, don't stay up late, especially don't play with your mobile phone for a long time, to avoid causing sleep disorders; Clause.

2. Don't drink some stimulant drinks before going to bed, such as coffee and tea, these drinks can affect sleep and make it difficult to fall asleep; Clause.

3. Don't eat too much dinner to avoid poor digestion and affect sleep.

The specific analysis of the harmfulness of poor sleep is as follows:

1. Poor sleep quality will lead to the inability of various organs of the body to get sufficient rest, making patients prone to fatigue, difficulty concentrating, memory loss and other symptoms, affecting daily life.

2. Long-term poor sleep and insomnia can easily cause patients to have anxiety, irritability, nervousness, irritability, depression and other bad emotions, and will also make the nerves in a tense state that cannot be relieved. Long-term exposure to such emotions and states can cause mental disorders.

3. Poor sleep will also make the resistance weak, if you lack sleep for a long time and have poor sleep quality, you are more likely to have a decline in immune function.

4. Poor sleep quality has a significant impact and will affect the function of important organs, especially liver organs, which are susceptible to poor sleep quality and have impaired function. Generally, the liver needs to excrete toxins produced in the body during sleep at night, but many people are prone to liver function decline under the influence of poor sleep quality, and once the liver is diseased, it will cause various adverse consequences.

Long-term poor sleep will lead to a decrease in the patient's resistance and the susceptibility to infections such as colds and other diseases

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.

Scientific studies have shown that a normal adult's sleep should be about 6-8 hours a day, compared to the developing child will have a greater need for sleep, as we all know, staying up late every day will cause a lot of irreversible harm to the body, but in fact, if you sleep too long every day, it is also very harmful to the body.

If people sleep too long, the first thing is to cause some damage to our stomach and intestines. Because as we sleep more, our activity will definitely decrease, and we all know that our stomach is working for 24 hours to digest and absorb.

It's just that when we sleep, our stomach digestion slows down a lot, so when we sleep normally, the food in our stomach just meets the amount of digestion at night, and if we sleep for a long time, gastric juice will still be secreted after digesting food, which will cause damage to our gastric mucosa.

On the other hand, if you sleep too long, it will affect the normal operation of the heart. We all know that when people sleep, the workload of all parts of the heart will be reduced, and it is only used to maintain the body's caloric work to achieve the body's relaxation, but if this state is maintained for too long, the contraction of the heart will be affected, and there will often be panic due to activity.

And sleeping too long will lead to weakened heart function, resulting in insufficient blood supply, if you stay in this state for a long time, it will lead to a decrease in reflexes, brain sluggishness, and even often dizzy feelings. Because of the decrease in brain activity, it may lead to a decrease in memory and even forgetfulness.

1.Alcohol. After drinking alcohol and falling asleep quickly, your body will spend more time in deep sleep than usual.

Then your sleep cycle will **, and your brain will stay in a lighter sleep state for the rest of the night, so that you will wake up in the morning feeling drowsy and not fully recovered.

2.Caffeine.

3.Didn't eat enough.

If you don't eat enough before going to bed and go to bed hungry, your sleep will be interrupted throughout the night, and you won't be able to go into deep sleep, and you will always sleep very lightly.

1. Metabolism slows down and appetite increases.

There is a hormone called leptin in the body, and leptin is an important element in maintaining the body from sudden weight gain. When you don't sleep well, the leptin in your body will start to decline, and at this time, the body will send a message that you want to eat a lot.

If you eat more at this time, coupled with the reduction of leptin, the excess fat and energy in the body cannot be consumed, and it will accumulate in the body to cause obesity.

2. Easy aging.

When you sleep, you secrete more growth hormone, which has the ability to regenerate cells and keep your skin young and elastic, but women must sleep longer and deeper than men to get growth hormone.

Therefore, when you sleep poorly, the cells of the skin cannot be renewed, the complexion will look old and dull, and the older you get, the secretion of growth hormone will become less and less, if you often do not sleep well, the whole person will look more aged.

3. Mood deteriorates.

If you often suffer from insomnia or poor sleep quality, not only will you not be able to concentrate and lose your mind, but also because you can't resolve the accumulated physical and psychological pressure, you will easily have emotional reactions such as anger and restlessness.

The average amount of sleep a normal adult needs is 6-8 hours per night, and if you sleep, 6-8 hours is enough time for the body and brain to get enough rest and recuperation. Sleeping too much is not good, mainly due to the following harms:

1. Easy to fatigue, poor mental state, people appear listless, because of long-term sleep the body's metabolism and blood circulation will slow down, oxygen and nutrients can not be dredged to all parts of the body in time, the brain is prone to hypoxia, the result is that the more you sleep, the more sleepy you are, and it will affect your memory for a long time.

Second, affect the function of the heart, the human body is resting when the heart is also in a relatively rested state, if the sleep time is too long, it will affect the contraction rate of the heart, resulting in cardiac weakness, heart function decline, a little activity will appear palpitation, shortness of breath.

3. Weight gain, the human body is in a dormant state when sleeping, the decomposition of food in the body will be slow, and the calories need to be consumed will be less, which will cause obesity over time, and obesity will bring a series of health problems.

There are many studies that have shown that too much sleep can cause many harms, such as increasing the risk of diabetes, increasing the risk of heart disease, and increasing the risk of obesity.

From a health point of view, sleeping for four hours is not good for your health. The latest research has found that adults should sleep a little more than 7 hours, which is the most suitable for the human body and is beneficial for longevity. It is generally believed that more than 80% of adults sleep for about hours a day, teenagers need more, teenagers need about 8-9 hours, and children need more, children need 10 hours of sleep.

But this is only for most people, there are individual differences. Some people take short sleeps and only need 4-5 hours of sleep every night. These 4-5 hours of sleep will not cause any physical discomfort to these people, so there is no need to force 6-7 hours, or 7-8 hours of sleep, so that they will feel uncomfortable.

Some adults may need to sleep for a longer period of time, perhaps 9-10 hours. This is a long sleeper, accounting for about 1%-3% of the population. So how long you sleep depends mainly on whether you can sleep well, and you can be clear during the day, and you don't feel tired or sleepy, so you don't have to worry too much about how long you have to sleep.