How many hours a day does an adult sleep be scientific? 7 hours at night and 1 hour at noon, is it e

Taking too much nap in the middle of the day can lead to malaise in the afternoon, at most an hour, or seven or eight hours in the evening, according to experts from the People's Hospital.

7-8 hours of sleep a day, and one hour of sleep at noon is enough.

It depends on what time you start to sleep, and you go to bed around 10 o'clock at night, and 7-8 hours is enough.

It's just because of people. Some people sleep a little longer, others a little shorter. The best thing to do is to sleep until you wake up naturally and feel energized at the same time. If you sleep for a long time but feel that you can't sleep, then there is something wrong with your body, and it is best to see a Chinese medicine practitioner.

Actually, it depends on the individual situation. However, it is said that the noon nap should not exceed 1 hour, and 40 minutes is the best.

Adults can sleep for 6 hours at night, 30 minutes at noon, and it also depends on how well you sleep.

Isn't there a sleep cycle, a three-hour cycle, so wake up while you're taking a light sleep.

That depends on the physique of different people, and normal people are enough.

Sleeping too much at noon will lead to malaise in the afternoon, at most one hour, and seven or eight hours on the stool at night, this is the people's hospital.

The experts say that the poor band.

7-8 hours for 18-59 years of age (but the study found that it should not be less than 9 hours); 60-70 hours old (some experts believe that the elderly should also sleep more than 9 hours).

Assuming age x, the optimal sleep time y approximately satisfies y=21-6x. However, some experts have proposed that the elderly need longer sleep than adults due to weak qi and blood, so there is y=22-7x.

The core of "healthy sleep" is first of all to create a suitable environment: mainly a quiet bedroom and closed comfortable bedding, ventilation is an important condition of the bedroom, regardless of the outdoor temperature, before going to sleep should open the window for ventilation, pillows should be moderately soft and hard, and the bed should be carefully chosen.

For young people who need to go to work, they all go to bed before 12 o'clock. If you sleep too late, you may suffer from insomnia, and it will also affect your state at work. But for the students, they'll all be at 10:10

Sleep around 30, because students' sleep time needs to be more guaranteed. <>

Everyone's sleep needs are different, some people may have trouble sleeping, but there are also people who can't wake up every day. But for most adults, everyone should also get enough sleep, and it is best to sleep for seven or eight hours a day. Because if you sleep too little, it is likely to affect everyone's living conditions.

But everyone goes to bed differently, and some young people like to go to bed around 11 o'clock. But there are also some people who especially like to stay up late, and they will choose to go to bed at three or four o'clock in the middle of the night. But sleeping too late can cause a lot of harm to everyone, and even affect your health.

If you need to wake up early the next day, you must go to bed early so that you can get enough sleep. And when you sleep, you can listen to some more relaxing **, so that the body can become particularly light Qihe Song. For students, their sleep time is particularly important.

If students finish their homework, parents must tell them to go to bed early and also tell them to go to bed by 10:30. In this way, the students' minds can also be rested, and the next two days of study can be more concentrated.

After falling asleep, the body will also secrete some substances, which are also extremely helpful to the body. Therefore, there are many advantages of going to bed early, and being able to develop a good habit of going to bed early will also make you a very self-disciplined person. If you can't sleep, you must put your mobile phone aside, so that your eyes and brain can rest.

If you keep holding your phone, you will find that you are less and less sleepy.

I go to bed around 10 o'clock every day when I slow sell. In this case, I will get up at 6 a.m. It is also guaranteed eight hours of sleep. Normally, if I am stupid, I would not choose to stay up late.

I start going to bed at 11 o'clock every night, and I think going to bed at 11 o'clock is relatively better and can meet my sleep needs.

Sleep is a very important physiological phenomenon, and if you sleep poorly for a long time, it is very harmful to your health, and it will also directly affect the brain nervous system. Every adult should ensure a minimum sleep time, so what is the normal sleep time for adults?

1. Normal sleep time for adults.

Adults usually sleep for about 5 to 8 hours. Therefore, as long as adults can maintain 5 to 8 hours of sleep every day, their energy during the day can be very vigorous, and their nervous responses will be more active, which will basically not affect normal work and study. It is recommended to try to maintain at least 7 hours of sleep, although some adults only need 5 hours to meet their sleep needs, but the body should rest for at least 7 hours, otherwise there may be symptoms of organ decline.

2. Factors that affect the normal sleep time of adults.

1.Physical constitution.

Each adult's biological clock and sleep time are different, which is actually related to genetics. If the family members in the family sleep less, then their sleep time will be relatively less than others, which is a normal physiological constitution, and there is no need to special**.

2.Sleep quality.

Sleep quality can also affect the need for sleep time, and if the sleep quality is relatively high, it only takes a short sleep time for the body to quickly return to activity. If the sleep quality is relatively low, it needs a longer sleep time, otherwise it is difficult for the body toxins to be metabolized, and poor sleep for a long time is easy to cause chronic diseases. If you usually feel that the quality of sleep at night is relatively poor, you can rest for 5 to 10 minutes at noon, so that you can also recover energy in a short time.

1. Adults need to sleep a few hours a day.

to 64 years of age.

For the average adult, the optimal amount of sleep is around 6-8 hours a day. However, due to differences in work and living conditions, many people cannot maintain 6-8 hours of sleep for a long time. Therefore, as long as the mental state is good the next day and there are no uncomfortable symptoms such as not waking up and dizziness, then some people can only sleep 5 hours a night to meet their daily sleep.

However, in order to ensure a good mental state, try to maintain more than 6 hours of sleep.

People over the age of one.

As the elderly age, their sleep time will also decrease, and generally 5-6 hours is a relatively normal sleep time. However, some elderly people follow the habit of going to bed early and waking up early, and may sleep less than 5 hours to meet their daily needs.

2. Factors that affect the daily sleep time of adults.

1.Sleep regularity.

Everyone's situation is different, so the exact amount of sleep that is considered healthy varies from person to person. For adults who are accustomed to shorter sleep durations, as long as they are energetic and have a high proportion of deep sleep time, then 6 hours of sleep a day is sufficient.

2.Physical condition.

Some people feel tired and weak even if they sleep 8 hours a day due to poor physical fitness and weakness, so you can increase the nap time appropriately. People who are in good physical condition may not sleep for long and are in better shape the next day. Therefore, the standard of sleep time needs to be adjusted according to the physical state of the next day.

Under normal circumstances, adults should sleep 8 hours a day to restore the function of various organs in order to achieve the real physiological effect of sleep.

Adults are not simply resting when sleeping, because most nerves and organs stop moving or achieve the lowest physiological activity effect, but there are still some functions in progress, such as the brain can organize information in the sleep state, strengthen memory, and repair and repair the body's immune system until it returns to normal. Immune proteins are consumed during the day, and can be recovered, recuperated, improved, and strengthened during resting at night. Other important organs are also slightly active, such as various functional activities, including respiration, circulation, liver and kidney function, etc., are still active, but the activity is relatively low, not very excited.

The autonomic and parasympathetic nerves of the nervous system are excited during sleep, and the sympathetic nerves are adjusted and rested. Sleep is a very important physiological function, life has 1 3 to spend in sleep, so sleep is not a simple rest, it is a very important physiological activity process, to pay attention to it. Poor sleep will cause dysfunction of the nervous system and various organs, and will cause serious diseases and shorten life expectancy.

It is recommended that adults should not go to bed more than 23 o'clock, choose a hard bed when sleeping, keep the height of the pillow moderate, and ventilate the room frequently to maintain fresh air. You can't drink strong tea before going to bed every night, and you can drink pure milk.

Hours of sleep are needed each day. According to the sleep cycle theory, the human sleep cycle is 90 minutes and requires 5 cycles of sleep per night.

This means that just a few hours of sleep is enough to get a good night's rest.

But the reality is that not everyone can fall asleep immediately when they go to sleep.

Therefore, in order to develop good sleep habits and ensure the quality of sleep, you can set yourself 5 to 6 sleep cycles according to an integer multiple of 90 minutes.

If you go to bed at 10:00 the night before, you will wake up at 5:30 the next morning. You can also increase the sleep time by integer multiples of hours.

For example, you can set the alarm clock to 7 o'clock, 8:30 o'clock, and so on.

Under normal circumstances, people only need to ensure that they sleep 35 cycles a week, and they do not have to pursue a good night's sleep.

In general, everyone's sleep needs are different, so there is no "standard" sleep time that works for everyone. While it is recommended that adults get 7-9 hours of sleep per night, it doesn't mean that everyone needs to sleep that long.

Some people may need more sleep and others may need less sleep, depending on many factors such as age, gender, health and lifestyle. Therefore, everyone should determine the sleep time that is suitable for them according to their physical needs.

In addition, in addition to sleep time, sleep quality is also an important factor. Healthy sleep should be deep and continuous, not frequently interrupted. If you wake up frequently or feel exhausted, you may need to change your sleeping environment and sleep habits, such as maintaining a regular sleep schedule, reducing the amount of time you spend using Zenchiropractic electronics, and avoiding caffeine or alcohol.

In conclusion, everyone's sleep needs are different, and healthy sleep is based on individual needs. It is recommended to maintain a regular sleep schedule and ensure adequate sleep quality to maintain physical and mental health.

I promised, because I only had to work 8 hours a day, so I had 10 hours of sleep in addition to entertainment.

I can certainly guarantee that because I get at least 9 hours of sleep a day.

I didn't get enough sleep because I lived a 996 life and didn't have that much time to sleep.