How much sleep is best in a day?

Human sleep is divided into periods, there are light sleep periods, and there are deep sleep periods. Every normal sleep usually consists of five cycles, and if you feel that you have something important to do and want to sleep but do not have enough time, you can use the "cycle interval sleep method". The so-called cycle-interval sleep method is to sleep only two or three of the five cycles, and wake up after sleep and at the beginning of the next sleep cycle.

Each sleep cycle lasts about 90 minutes, or 1 and a half hours. For the usual 8 hours of sleep, when necessary we can take only 3 hours of sleep, hours and then wake up to work. Waking up between sleep cycles has two benefits.

The first is of course to increase your valuable working time, and the second is to wake up at intervals, which is easy to wake up, rarely relies in bed (because people have the weakest sleep awareness during intervals), and does not affect the effect of previous sleep cycles. If you wake up during the sleep cycle, you are not only prone to sleepiness, but also affect the quality of your previous sleep, and you are not energetic at work, then the gains outweigh the losses.

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.

7 to 8 hours a day is optimal! And you won't be sleepy if you sleep an integer number of hours a day (the minimum hour, it can be 6 hours, hours).

See for yourself!

8-10 hours, it is best to go to bed at 22:00 and get up from 6:00 to 7:00 in the morning, which is more conducive to the body's metabolic process and repair and maintenance at night.

People generally sleep for 8-10 hours a day, and sleep for about half an hour during the lunch break.

It is not good for ordinary people to sleep too long or too short, and the best time to sleep is between 10 p.m. and 7 p.m. the next day. Young people can adjust their sleep time according to their own physiological rhythm, and at the same time, they must also ensure the quality of sleep. From 10 p.m. to 2 p.m. the next day is the time to sleep, when the metabolism of the liver is the most vigorous, if you stay up late for a long time and do not sleep, it may cause sleep disorders, and more severe cases lead to physical dysfunction.

And 11 p.m. to 2 a.m. is the peak period of hormone secretion, hormones are conducive to human growth and development and the repair of some sub-health states of the body, if you miss this time for a long time, it is not conducive to human growth and health.

Ensuring sleep duration and quality is conducive to improving work efficiency and quality of life.

The effects of a reduction in sleep time of one or two hours a day and 48 hours of sleep without sleep may seem different on the surface, they can both lead to sleep deprivation, which can affect the body's biological clock and the normal functioning of the brain. Lack of sleep will interfere with the internal biological rhythms of the human body, such as the thalamic-pituitary-adrenal axis, body temperature, neuromodulation, etc., these biological rhythms will affect the metabolism and regulation mechanism of the human body, and cause a series of physiological and psychological changes. These changes may include decreased memory, sluggish thinking, slower reactions, difficulty concentrating, irritability, etc.

In the case of sleep deprivation, the body's internal metabolic and regulatory mechanisms are disturbed, which affects the normal functioning of the brain. Although not sleeping for 48 hours can affect the body's metabolism and regulatory mechanisms more drastically, sleeping less than one or two hours a day can also lead to biorhythm disruptions that affect the normal functioning of the brain. That's why the effects of a reduction in sleep time of one or two hours a day and 48 hours of sleep without sleep are likely to be similar.

To sum up, whether it's a reduction in sleep time of one or two hours a day or 48 hours of sleeplessness can have a detrimental effect on your brain and physical health, so it's important to get enough sleep.

<> Also, sleep time is genetically related.

There are people in the world who have the gene for short sleep and are called short sleepers. They only need a few hours of sleep a day to have more energy than the average person, and Steve Jobs is one such group.

And 2%-3% of people who have a long sleep gene have a long sleep gene, which is called a long sleeper. This kind of person needs 10 hours of sleep a day and more than a few minutes to ensure that the mind is clear and has a good mental state, Gu Ailing is one of the representatives.

Adults sleep 8 hours a day, and children aged 6-13 years sleep 8-10 hours appropriately. As we age, we get less sleepy, and many older people get enough sleep for 6 hours. Sleep time varies from person to person, so it's better to stay energized during the day.

In addition, the daily sleep time of adults varies greatly due to work and lifestyle habits, which fluctuates around 5-8 hours. While most people may get 7-8 hours of sleep, some people need 8-9 hours or more of sleep to feel sufficient, while others get comparatively less sleep and 4-5 hours of sleep feel sufficient. At this time, it should be judged according to the situation of waking up the next day, if you feel full of energy after waking up, no longer sleepy, and can concentrate on your work and life during the day, it proves that your brain and body have been rested enough at night, and the sleep time of the previous night can meet your needs.

If you wake up with headaches, sore eyes, and low energy, it means that you haven't rested well. If you feel dizzy after thinking about it, although you are not sleepy but you are not motivated, it means that you have slept too much, and you can get up early appropriately.