How many hours does an average person sleep in a day?

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:

Age Sleep time.

Newborns 20-22 hours.

2 months infants: 18-20 hours.

1 year 15 hours.

2 years 14 hours.

3-4 years 13 hours.

5-7 years 12 hours.

8-12 years old 10 hours.

12-18 years old 9 hours.

7-8 hours for adults (not 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.

Adult: 8 hours Children aged 1-6 years: Sleep as much as possible, no less than 10 hours!

Don't let it be bad for the body! Elementary school kids: 10 hours of sleep is good from junior high school to high school:

8 hours. To go to bed early and get up early, this is a great nutritional help for the body, and 11-3 every night is beauty, and growing taller is also the time when you need to supplement sleep the most. If you sleep very well at that time, you will not have dark circles under your eyes, and you will be very happy when you wake up in the morning, and you will not be very tired.

Also, don't sleep more than 8 hours from high school, sleeping too much will be bad for your health, and it's easy to get fat. That's it, ask me any questions. I'll take the answer, hehe.

It is better to sleep for seven or eight hours, sleeping too much makes people "stupid".

According to a new study published in the journal Sleep by Canadian neuroscientists, preliminary results from the world's largest sleep study they conducted show that people who sleep an average of 7-8 hours per night show better cognitive performance than those who sleep less or more than that amount.

According to the study, about half of the participants reported sleeping less than an hour each night, an hour less than the amount recommended by the study.

One striking finding was that sleep affected all adults equally. The amount of sleep (7-8 hours) associated with highly functional cognitive behaviour is the same for everyone, regardless of age. In addition, impairments related to too little or too much sleep were also independent of the age of the participants.

In addition, the study found that participants' reasoning and speech abilities were the two behaviors most affected by sleep, while short-term memory performance was relatively unaffected, unlike what most sleep deprivation studies have found, and suggests that prolonged sleep deprivation has a different effect on the brain than staying up late.

On the positive side, there is evidence that even a night's sleep can affect a person's ability to think. Participants who slept more than usual the night before enrolling in the study performed better than those who slept the same amount of time as usual or slept less.

People of different ages sleep differently. 8 hours for adults and up to 16 hours for young children. For the elderly, it is 5 to 6 hours.

But the most important thing is to follow the rules. Catching up on sleep is the worst way to do it. It affects the normal metabolism of the human body.

6-8 hours is enough. If you are still feeling tired, you can take a nap for no more than half an hour at noon, so that you should be able to maintain your spirits for the day.

It is best for adults to stay at 6-8 hours, and children and the elderly should sleep at 8-10 hours.

Get at least 6 hours of sleep!

According to a recent survey, 6-7 hours is best ......It is longer than sleeping for eight hours.

Moderate sleep time is best.

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.

How many hours a day is appropriate: Here are the data on how long a person sleeps: years. Age.

Sleep time. 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.

Babies and toddlers sleep for about 11 to 20 hours, preschool children sleep for about 10 to 13 hours, teenagers sleep for about 8 hours, but the specific time varies from person to person. Getting a good night's sleep is good for your health.