What time period is deep sleep, ask for popular science, 100 professional points

Deep sleep is a part of sleep, accounting for only 25% of the total sleep time, and deep sleep is also known as "** sleep". A person's nighttime sleep is generally divided into 5 to 6 weeks of cycles, with each sleep cycle of about 60 minutes and 90 minutes. Depending on the changes in brain waves, electromyography waves, and eye activity during sleep, the sleep cycle consists of non-REM cycles and REM cycles.

Non-REM sleep is divided into 4 stages: light sleep, light sleep, middle sleep and deep sleep, and then enters the REM sleep period, which is considered the end of one sleep cycle and then continues to start the next sleep cycle. Studies have shown that the light sleep period and light sleep period, which account for about 55% of the entire sleep time, have little effect on relieving fatigue, and only the middle sleep period, deep sleep period and REM sleep period that enter the deep sleep state have a greater effect on relieving fatigue. Because in the state of deep sleep, the cells of the cerebral cortex are in a state of sufficient rest, which plays a vital role in eliminating fatigue, restoring energy, and immune and anti-disease.

However, this deep sleep only accounts for 25% of the total sleep time. Therefore, the evaluation of sleep quality should not only look at the time, but more importantly, the quality. Improving sleep quality ultimately depends on the length of deep sleep.

In sleep science, "deep sleep" is the deep rest of the brain that does not carry out activities after you fall asleep, the night you sleep, first enter light sleep and then naturally enter deep sleep, then light sleep and then deep, back and forth until you wake up, people may dream during light sleep, but deep sleep will not. Deep sleep is also known as "** sleep", which is commonly referred to as "gold sleep" and "gold sleep".

Optimal sleep.

The BAI time varies according to different age groups, and deep sleep only accounts for 25% of the entire sleep time, as follows: the best sleep time for the elderly over the age of Hui is hours, and the deep sleep time is hours.

The optimal sleep time for a 60-year-old adult is about 7 hours, with a few hours of deep sleep.

The best sleep time for a 29-year-old young person is about 8 hours, with 2 hours of deep sleep.

There is no strict division of the optimal sleep time, sleep is extremely important for brain health, people generally need to have more than 8 hours of sleep, and it must be of high quality. If the time or quality of sleep is not enough, it will be difficult to recover from the fatigue of the brain, and if the lack of sleep or the quality of sleep is too poor, it will seriously affect the function of the brain, and people who are originally very smart will become confused, and many people will suffer from neurasthenia and other diseases.

The long-term effects of poor sleep quality on the body are serious, and the following aspects can improve sleep quality:

Take a sleep aid

For people with poor sleep quality, you can take Fuxishu Yukang Cream to fundamentally regulate the heart and spleen, calm the nerves and nourish the heart, and improve sleep quality while helping you fall asleep quickly, and studies have shown that the effect is significant.

Sleep in moderation

In many books, it is said that adults generally sleep 7 to 8 hours a day. The latest research has found that 6-7 hours of sleep at night is not enough for a person. Therefore, most people actually do not get enough sleep, which not only reduces the quality of life, but also may lead to diseases.

To compensate for this widespread lack of sleep, "naps" are promoted. This type of nap refers to a 20-minute nap after waking up from formal sleep every day.

Sleeping environment

There should be a suitable environment for sleeping, mainly a quiet bedroom and comfortable bedding. Regardless of the temperature outside, you should open the windows for ventilation before going to bed. Choose a comfortable bed, generally a brown trampoline or a cork mattress with moderate firmness.

The pillow should be moderately soft and hard, and try to be warm in winter and cool in summer.

Conform to the biological clock

If we wake up on time every day and go to the sunshine every morning, then your body clock will be running on time. Studies have shown that this is one of the key elements in improving sleep quality.

Regulate your diet

A small number of people subjectively did not feel bad sleep after consuming a lot of coffee, chocolate, cola, tea and other foods or beverages at night, but experiments have confirmed that their deep sleep can be adversely affected. So before going to bed, don't consume these things.

In a state of deep sleep, the heartbeat, breathing, blood pressure, body temperature, and the entire metabolism of the human body are reduced to the lowest level of the day, and the consciousness is almost completely disconnected from the outside world, and it is difficult to be awakened. The length of deep sleep has a significant impact on learning and memory.

Of course, the more deep sleep the better. However, this time is not entirely under our control. Some factors that we can control also affect the duration of deep sleep, such as sleep habits and sleep rhythms.

Poor sleep habits, or frequent disruptions to sleep cycles, such as night shifts, frequent cross-time travel, and irregular sleep schedules, can affect the duration of deep sleep.

In general, the younger you are, the longer you spend deep sleeping; The older you get, the less time you spend in deep sleep. This is also one of the main reasons why the sleep quality of the elderly is getting worse and worse, and the ability to learn and remember is gradually decreasing.

Although deep sleep is mainly age-related, developing good sleep habits, quitting bad habits such as smoking and alcohol, and rational use of sleep-related drugs can also optimize sleep cycles, increase deep sleep time, improve sleep quality, improve learning and memory ability, and improve quality of life.

The optimal sleep time is 7 to 8 hours.

A person's deep sleep time is generally 2 hours, and the degree of sleep accounts for only 25% of the entire sleep time.

If you have shallow sleep, you need to adjust your living habits, don't always stay up late or go to bed late, it is very important to fix your work and rest, it is best to drink a cup of sleep fragrance before going to bed, so that you can stick to it every day, which can help improve insomnia and improve sleep quality.

The optimal sleep time is eight hours, and the deep sleep time is one hour. The calculation of deep sleep time depends on how long you have been dreaming.

The best sleep is 8 hours. Organize your time wisely every day.

12-18 years old sleep 9 hours, adults sleep 7-8 hours (should not be less than 6 hours), fall asleep before 10 o'clock, do not exceed the latest.

Edition 11 o'clock. 1. 9-11 p.m. is the detoxification time of the immune system (lymph), and you should be quiet or listen during this time.

2. From 11 p.m. to 1 a.m., liver detoxification needs to be carried out in deep sleep.

3. At 1-3 o'clock in the morning, the same is true for the detoxification of gallbladder.

4. 3-5 a.m., detoxification of the lungs. This is why people who cough cough the most violently during this time, because the detoxification action has reached the lungs; Cough suppressants should not be used to inhibit the elimination of waste deposits.

5. At 5-7 o'clock in the morning, for the detoxification of the large intestine, you should go to the toilet to defecate.

6. From 7 to 9 a.m., when the small intestine absorbs a large amount of nutrients, breakfast should be eaten. It is better for the healer to eat early, before half the o'clock, before half the o'clock, and those who do not eat breakfast should change their habits, even if they delay eating until the order of eating, it is better than not eating.

7. Midnight to 4 a.m. is the period of spinal hematopoiesis, which must be asleep and should not stay up late.

The optimal amount of sleep should be divided by age.

Over the age of the old zhi

Seniors: Sleep for an hour every day.

60-year-old adult Dao year: sleep 7 hours a day Left inner right 29-year-old young man: Sleep about 8 hours a dayDeep sleep is a part of sleep, also known as "** sleep", accounting for only 25% of the entire sleep time.

Deep sleep can relieve people's tiredness throughout the day and promote the body's metabolism, which is very good for the body.

If you want to maintain high-quality sleep quality, you need to drink sleep fragrance before going to bed, which can improve insomnia, shorten the time to fall asleep, adjust the biological clock, help prolong the time of deep sleep, and achieve deep sleep.

Healthy sleep is to fall asleep before 11 p.m. The best time to fall asleep is between 9 and 11 p.m., and people's deep sleep is generally from 12 p.m. to 3 a.m. in the evening.

It usually takes more than 1 hour of sleep for the body to reach a state of deep sleep, so it is best to go to bed between 9 and 11 p.m.

Furthermore, between 12 p.m. and 2 a.m., the liver is active to eliminate metabolic waste products and toxins, hence this stage is also called"Detox period or "beauty time". Therefore, it is best to go to sleep before 11 o'clock to achieve the effect of fitness and beauty.

Note: If you want to maintain high-quality sleep, you should not only pay attention to sleep time, but also pay attention to insomnia, maintain a healthy work and rest habits, empty distractions before going to bed, reduce crankiness, and it is best to drink a cup of sleep fragrance for a period of time, which can reduce anxiety, soothe nerves, and help you fall asleep quickly.

1.The normal sleep time for adults is about 8 hours of sleep per day. But it is not necessarily mandatory, it should be determined by individual differences, 2Falling asleep quickly and sleeping deeply, people who generally have no dreams or few dreams can fully recover their energy after sleeping for six hours.

3.Fall asleep slowly and sleep a lot, often dream nightmares, even if you sleep for ten hours, it is still difficult to be refreshed, you should get effective sleep through a variety of **, resulting in prolonged sleep time, harmful to the body.

4.In addition, now people live a fast-paced and stressful life, and it is easy to have insomnia, so it is necessary to consciously adjust the biological clock at this time, minimize staying up late, and take the sleep fragrance with warm water before going to bed, and persist for a period of time, which can improve insomnia, reduce anxiety, and help fall asleep quickly.

It can be detected with snail sleep.

When people are asleep, it is recommended that the best time is 2-3 a.m. This is the best time to fall asleep, rest the skin layer of the brain and repair neurons in the brain. Deep sleep during this time period has a very beneficial replenishing effect on the recovery of various organs and functional systems of the human body.

Therefore, it is recommended that people go to sleep at 22-23 o'clock in the evening, and the recommended time to get up is 6-7 o'clock in the morning, so as to ensure that the daily sleep time is about eight hours, which is the best sleep time for adults.

However, it is usually necessary to fall asleep about 3 hours after falling asleep before you can fall into a deep sleep. Therefore, the best time to fall into deep sleep is around 2-3 a.m.

The deep sleep time should be around 70 minutes to 100 minutes.

Deep sleep can promote the body's metabolism and relieve fatigue, which plays a very important role in the body. Deep sleep is not just about time, but more importantly, about quality. Therefore, if a healthy adult sleeps eight hours at night, the deep sleep time should be about one hour to one and a half hours.

As we age, we spend less time in deep sleep, and older people tend to spend less time in deep sleep than in young adults.

There will be certain physiological changes in the sleep time and depth of sleep and the sleep process in a person's life. But usually after the age of five to six, the sleep time is basically the same as the adult sleep time, and the deep sleep time is about one to two hours at most.

However, from personal experience, as long as you feel that you sleep more deeply and steadily, it is a deep sleep. Deep sleep, which varies from person to person, accounts for about 20 to 30 percent of the entire sleep time if the data are objectively monitored. For example, if a person sleeps for seven hours, then deep sleep is equivalent to about one and a half hours.

Deep sleep is a part of sleep, in fact, it only accounts for about 25% of the whole sleep, that is, about 1 4. In fact, sleep is divided into deep envy and light sleep, which are mainly divided into non-REM sleep and REM sleep mainly according to EEG and eye activity. Non-REM sleep is divided into light sleep, light sleep, middle sleep and deep sleep, normal people are actually in the brother hunger cycle repeatedly, a night can go through 5-6 sleep cycles, each cycle is about 60-90 minutes.

But deep sleep only includes the mid-sleep, deep sleep, and REM cycles of non-REM sleep, whereas light sleep includes both light and mid-sleep phases. This takes up a long time, and it accounts for about 55% of the entire sleep cycle, while light sleep is not strong for resting and relaxing the body. Relaxation of the limbs and relief of fatigue, mainly during deep sleep.

Therefore, if the quality of sleep is ensured, not only the sleep time is extended, but the time of deep sleep can be ensured.

Hello, 12 o'clock to 3 o'clock is the time of deep sleep for the human body.

It is better to have a deep sleep of about 4 hours, and you will feel more comfortable when you wake up.

Deep sleep is a part of sleep, accounting for only 25% of the total sleep time, and deep sleep is also known as "** sleep". In deep sleep, when the human body sleeps most deeply and soundly, at this time, you can't hear any noise outside, and it is difficult to be woken up by others, and when you wake up, you will feel refreshed. Deep sleep is the child's physical growth and intellectual development; Young people are energetic; Middle-aged people are in good health; Guarantee of healthy and long life for the elderly.

During deep sleep, the cells of the cerebral cortex are in a resting state, so some people also call "deep sleep" "brain sleep", because deep sleep is extremely important for stabilizing emotions and balancing the mind.

During the deep sleep period, all the vital activities of the human body are reduced to a minimum: breathing is slow and steady, blood pressure drops, and the heart beats ......The body's metabolism is maintained at a low basal level, and the energy consumption is reduced; At the same time, the relevant tissues and organs in the body are strengthened by parasympathetic innervation, and the energy production is increased, which is also helpful for eliminating fatigue and restoring physical strength.

The deep sleep period can promote the secretion and release of growth hormone from the pituitary gland, which can not only promote bone growth and physical development, but also enhance the protein synthesis of various tissues in the body, promote fat decomposition, and maintain the metabolism of adults in a "young" state.

Experiments have proved that some antibodies will be produced during the deep sleep period, which can enhance the body's ability to resist diseases and promote the self-improvement of various tissues and organs. Therefore, the relationship between sleep and the body** is becoming more and more important, and lack of sleep may induce or aggravate pre-existing diseases. Therefore, if patients with colds and fevers want to sleep, it is actually a self-protection mechanism.