How many hours a day is best for a person to sleep, and how many hours a day is best for a person

Sleep should generally be maintained for 7 to 8 hours, but it is not necessary and should vary from person to person. Those who fall asleep quickly and sleep deeply, and generally have no dreams or few dreams, can fully recover their energy after 6 hours of sleep; People who fall asleep slowly and have many light sleepy eyes, often dream and nightmares, even if they sleep for 10 hours, it is still difficult to be refreshed, and they should go through various ** to get effective sleep, but prolonging sleep time is harmful to the body. Since everyone has a different biological rhythm, the arrangement of sleep in the morning and evening should be different from person to person!

In fact, different circadian rhythms cause two conditions of sleep, namely "night owls" and "larks". Adapting to this circadian rhythm is good for work efficiency and quality of life, and vice versa, it is bad for health.

According to the medical theory of the motherland, it is advisable to go to bed late and get up early in spring and summer, and you need to sleep 5 to 7 hours a day; In autumn, it is advisable to go to bed early and get up early, and you need to sleep 7 to 8 hours a day; In winter, it is advisable to go to bed early and wake up late, and you need to sleep 8 to 9 hours a day. Conform to the laws of natural growth and collection.

Sunny, hot days with short sleep durations; Bad weather, such as rainy days, cooler winters, and long sleep hours. With the increase of altitude in the area, the sleep time decreased slightly; With increasing latitude, sleep duration is slightly longer.

The amount of sleep a person needs per day is genetically determined, and a normal adult needs 7-9 hours of sleep a day to keep themselves energized.

A healthier body and sleep must be a top priority. Normal adults get six to eight hours of sleep a day, and it's recommended to go to bed before 11 p.m.

Normal people actually only need 6 hours, but in order to fully regulate the body functions, it is best to sleep for 8 hours. (excluding the best lunch break of 1 hour at noon) middle school students need to sleep for 6 hours, which is the most favorable sleep time for IQ development, but most of them do not sleep for 6 hours, so it feels very hard!

Hello landlord! Happy Chinese New Year! It is normal to sleep for 8 hours, which refers to the average sleep.

From birth to childhood to adolescence, a person's daily sleep time gradually decreases, is relatively stable in adulthood, and gradually decreases after entering old age. In general, babies who are born sleep 17 to 18 hours a day, and then gradually decrease to 13 14 hours a day by 1 year of age, 10 12 hours a day by 4 years of age, about 9 10 hours a day by 10 years of age, and one hour a day by 20 years of age. Sleep duration has been relatively stable since then, but it continues to decline slowly with age, reaching about an hour of sleep per night by the age of 65.

Of course, these numbers are in terms of the general situation in the population, and normal individual differences exist, and for specific individuals, these numbers may not be hard applied.

Here is the data on how long the human body sleeps:

Newborn. 20-22 hours.

2 months baby. 18-20 hours.

1 year old. 15 hours.

2 years old. 14 hours. 3-4 years old.

Hour. 5-7 years old.

Hour. 8-12 years old.

Hour. 12-18 years old.

Hour. Adult.

hours (should not be less than 6 hours).

60-70 years old.

9 hours. 70-90 years old.

10 hours. Over 90 years old.

It should not be less than 10 hours.

Sleep too long and lack of sleep are the same, can lead to fatigue, tiredness, metabolic rate reduction, sleep should not be too long, sleep for too long, the heart beat will slow down, the metabolic rate will also drop very low, muscle tissue relaxed, over time, people will become lazy, weak and powerless, and even intelligence will decline. Therefore, people's sleep time should not be too long, 7 to 8 hours of day and night for adults is enough, if you want to increase the sleep time to get healthy, it will be counterproductive, increase diseases, shorten lifespan.

Normal people sleep for 6-8 hours (10 hours for the elderly and children, and longer for infants) ......Beauty sleep hours are 22 o'clock - 2 o'clock in the morning.

...... staying up late for a long timeEven if you sleep for 8 hours, you will be prone to endocrine disorders in a few years, and the biological clock will be messed up.

It is best for children to go to bed before 20:30 at night, because they are ...... longTeenagers should go to bed around 10 p.m. ...... night

As for beauty lovers, be sure to sleep before 2 a.m., because the metabolism is ...... before 2 a.m

For the elderly, it is better to sleep between 21 and 22 o'clock in the evening.

Sleeping 7 to 8 hours a day is the best time to sleep, and sleeping more or not enough is not good for the body.

The average person can sleep 6 to 8 hours a day, but there are differences in the human body, some people sleep for six hours and are full of energy, and under normal circumstances, people need to sleep at least six hours.

Everyone's sleeping time should be different, but it should be about 8 hours for adults. Children should sleep more, especially very young children, sometimes for more than ten hours.

Scientific data suggests that seven to nine hours a day is sufficient for adults.

A normal adult can sleep six to eight hours a day, but it is not absolute, it varies from person to person, and it is different for everyone.

In addition to the time of sleep, the quality of sleep is also very important, some people who sleep *** sleep for more than five hours can meet the needs of sleep, while some people sleep for eight hours still have the feeling of not sleeping enough, still feel sleepy, still can not meet the needs of work and study the next day.

Normal people's sleep has deep sleep and light sleep, and only enough deep sleep can allow the body and brain to get full rest and recuperation.

People with high sleep quality sleep more deeply, and only sleep for more than five hours can meet the needs of work and life the next day, and they are still full of energy.

Some people have more light sleep, always feel dreaming, and wake up easily, which requires sleep time to remedy the lack of sleep quality. If there is no daytime sleepiness, whether it is five hours or eight hours, it is appropriate for the individual.

Recently, Mr. Zhang Chaoyang, CEO of Sohu, publicly said that ordinary people do not need to sleep for a long time every day, and it is enough to sleep 4 hours a day.

This sleep pattern varies from person to person and is not desirable for everyone!

Some people at the expense of sleep time, lack of energy, the efficiency of the whole day will be very low, sleep more and sleep less need to conform to the human body's sleep rules, only sleep well, energy, the efficiency is naturally high, no need to compress time to complete things.

Moreover, people have different needs for sleep duration at different ages, from the need for a longer sleep time when they are young to a shorter sleep time as they get older. But even for the elderly, 2-5 hours of sleep is clearly insufficient. When you sleep less than 6 hours, the risk of cognitive impairment is significantly increased.

Nowadays, young people have high work pressure, many entertainment projects, and lack of time has become the norm, which may also be the reason why various short sleep methods on the Internet have attracted attention. Reducing sleep time comes at the cost of health damage, and saving time really doesn't outweigh the cost.

On top of that, while we often see some well-known business people, historical figures, and other celebrities claiming to sleep only 4 hours a night, these claims are often unsubstantiated, and if you look closely, you will find them untrue.

Chances are, many people who say they don't need a lot of sleep will take naps during the day to compensate for the short nights.

So, we don't have to follow the trend and compress our sleep time!

Generally, adults can maintain a sleep time of about 8 hours, but there is no mandatory requirement for sleep time every day, and it is generally based on their own situation. As long as you are in a good state of mind the next day, you will get enough sleep according to your needs.

People of all ages need different amounts of sleep. Generally, newborns sleep for about 18 hours; Babies are about 12 hours; Preschoolers sleep for about 10 hours; Adolescents sleep for 8-9 hours; 7-8 hours for adults; Older people may have their sleep reduced to about 6 hours due to various functional declines.

People with sleep disorders can drink a glass of warm milk before going to bed, and do appropriate physical exercise during the day to help them fall asleep, improve sleep quality, and ensure that the brain is fully rested.

With enough sleep, nerve cells and memory cells are likely to play their best role. If you don't get enough sleep for a long time and have poor sleep quality, it is easy to cause various health problems, such as mental weakness, sleepiness, malnutrition, etc. Therefore, in order to ensure good health and maintain high efficiency in daily work and study, adequate sleep time should be ensured.