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Four hours of sleep at night is too little. The normal sleep duration of a person is 7 to 8 hours. Also ensure the quality of sleep.
Too little sleep. The brain and body are not rested. People get tired easily.
The damage to the human body is great. Long-term lack of sleep will cause a lot of diseases to the body. The person's memory slowly declines.
Groggy and without energy every day. Unable to get the job done with quality and quantity. While ensuring a normal sleep time, it is also necessary to ensure the quality of sleep.
Only then can people really let their bodies rest. Nourish your spirits.
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It's okay to sleep for four hours, but if you have problems with your body often, it's okay to do it occasionally.
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Yes, but it is not recommended for a long time, and it is still necessary to get enough sleep at night.
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No, once in a while, the body can't bear it for a long time!
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Lack of sleep for a short period of time or two has a very low impact, but if it is not enough sleep for a long time, it will cause great harm to the human body, and it is easy to get tired, lack of concentration, drowsiness, etc., which may lead to sudden death.
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Different people's sleep time is different, most people need to sleep for 6 to 7 hours, and some people sleep for 4 to 5 hours and can't sleep with full energy.
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No, there is too little sleep.
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Not necessarily. People who sleep short are not only sufficient, but may also have a surplus.
People who sleep for a long time can't last a few days, and they can't help but be in a trance.
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Sleep deprivation, pay attention to rest.
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From a health point of view, sleeping 4 hours a day is not good enough for the body. Because for most people's physique, 4 hours of sleep is far from enough.
Therefore, if you want to make yourself well, you must not sleep for 4 hours, and it is best to sleep for about 7 or 8 hours, so that your body can be better.
And in fact, the sleep needs of ordinary people are actually more than 7 hours, sometimes even 8 hours and 9 hours, and a small number of people can sleep for very little time, but they are still very energetic.
And in fact, everyone's sleep time is different, some people are the kind of long sleepers, but some people are short sleepers. Long sleepers need to sleep for seven or eight hours, or even 10 hours, to be energetic.
And those who wait for sleep may actually be able to sleep for only three or four hours to achieve energy efficiency. Therefore, there is a big difference between the two, and most of the people who can say that they can sleep for 4 hours are actually a kind of short sleeper, or he has made himself a short sleeper through some acquired exercise.
But the vast majority of people are not this kind of short sleepers, that is to say, if you only sleep for 4 hours a day, your body will not be able to stand it, and even collapse, so it is still not recommended to sleep 4 hours a day.
Because even if you can spare a lot of time to do more things, but for us ordinary people, health will be more important, if 4 hours a day, for most people will lose a lot of physical health, so 4 hours of sleep is not enough, it is best to make yourself sleep a little more, let yourself be energetic, this is the best.
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Sleep four hours a day, sleep too short, adults should maintain at least about seven hours of sleep. In the case of insufficient sleep, the brain and body do not get enough rest, which will affect physical health in the long run, which can be manifested as: 1
Poor mental state, unresponsiveness, and marked memory loss. 2.Loss of appetite affects the digestion and absorption function of the gastrointestinal tract, and indigestion will occur.
3.It causes abnormal blood sugar and blood lipid metabolism, and there is an increase in blood pressure and insufficient blood supply to the myocardium.
1. During the day, you can exercise as much as possible, bask in the sun more, ensure the rhythm of melatonin secretion, and control the nap time within 30 minutes, too long will affect the night sleep structure.
2. Stay away from electronic products, TVs, etc. half an hour before going to bed, and avoid mood fluctuations caused by TV programs, short **, games, etc., so as to fall asleep faster. Before falling asleep, you can choose to put some empty sounds to calm your mood, such as mountain wind, water flow, rain sound, etc., try to relax your muscles, hands, neck, head, chest, etc., as much as possible to soothe the sinking, the relaxation of the body will also give the brain a relaxed and calm feeling, which is conducive to better and faster sleep.
3. Sleep at a fixed time, especially don't sleep lazy. Sleep is strictly restricted, such as 12 p.m. to 8 a.m., and this is the only time you can sleep. Get up as soon as possible when it's time to get up, don't procrastinate, don't make up for sleep.
Don't sleep or nap at other times, and try to stay awake with soothing physical activity or stretching exercises.
4. In terms of diet, it is recommended to eat carbohydrate-rich foods at night, eat less meat and other protein-rich foods, reduce the proportion of delicate carbohydrates in the staple food throughout the day, appropriately increase a variety of grains, and preferably eat four hours before bedtime. Because carbohydrates help promote sleep, while conversely, high protein helps to stay awake.
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Four hours of sleep can't be said to be absolutely good, nor can it be said to be absolutely bad. Subject to availability.
Whenever the country has a disaster such as Tanwu filial piety and floods, it is our lovely PLA soldiers and armed police officers and soldiers who rush to the forefront to search and rescue. In the course of these rescue efforts, time is precious, so officers and men must race against time in order to save more lives and property of the people. Officers and men often fought for days and nights in a row.
Under such a high load of labor, if the officers and men are on duty scientifically and ensure that each person gets four hours of sleep every day, these four hours of rest time will be extremely precious to the officers and men. It can greatly restore the physical strength of the officers and soldiers. Therefore, under such special circumstances, four hours of sleep is very healthy for the officers and men who have undergone strict physical training during the extreme busyness of search and rescue in a short period of several days.
It not only satisfies the needs of the people, but also ensures that the health of the officers and men is not overdrawn, because they can work and rest normally and recover their bodies after being busy.
Obviously, a short period of four hours of sleep is healthy in these cases.
Nowadays, after some entrepreneurs are successful, they always talk about sleeping only four hours during the start-up period, which is used to require employees to work overtime and sleep only four hours. This is extremely unhealthy for the average employee. Because, man lives a spirit.
Of course, the boss during the entrepreneurial period was extremely hard, but at the same time, there was a great deal of faith at that time. Great faith often underpins them to success in the end. The joy of success can further feed their bodies.
And under normal circumstances, after the bosses are successful, they pay great attention to health preservation, and will not take the part of the body that was overdrawn before the trigger. Ordinary employees do not have these conditions. Therefore, sleeping only four hours is very harmful to the health of ordinary employees.
Therefore, just because you only sleep for four hours in special circumstances does not call on others to sleep only four hours as well. Because sleeping only four hours can be extremely unhealthy for others! - Know the individual.
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If you sleep more during the day, you can replenish your energy, and because of the nature of your work, you can replenish it during the day.
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From a health point of view, sleeping for four hours is not good for your health. The latest research has found that adults should sleep a little more than 7 hours, which is the most suitable for the human body and is beneficial for longevity. It is generally believed that more than 80% of adults sleep for about hours a day, teenagers need more, teenagers need about 8-9 hours, and children need more, children need 10 hours of sleep.
But this is only for most people, there are individual differences. Some people take short sleeps and only need 4-5 hours of sleep every night. These 4-5 hours of sleep will not cause any discomfort to these people, so there is no need to force 6-7 hours, or 7-8 hours of sleep, so that they will feel uncomfortable.
Some adults may need to sleep for a longer period of time, and may need to spend 9-10 hours with a friend. This belongs to the long sleeper, and the envy of Jianfan accounts for about 1%-3% of the population. So how long you sleep depends mainly on whether you can sleep well, and you can be clear during the day, and you don't feel tired or sleepy, so you don't have to worry too much about how long you have to sleep.
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I don't have time to take a nap, so I can go to bed early at night. Otherwise, you are sleepy, and you still insist on it, no matter what you do, the efficiency is not high. Go to bed early, refresh your hair the next day, and do things with half the effort.