Is 7 hours of sleep harmful? Is it okay to sleep for seven hours

There is a lot of harm!!

The standard sleep time for this age group is 8 hours. Irregular sleep has many harms, not only affects growth and development (at least not conducive to growing taller), but also can cause neurasthenia and Meniere's syndrome over time, and also damage to body organs (sleep is not only to recuperate, but also to rest for various organs of the body, such as processing metabolic waste and dead cells).

It's only the third year of junior high school, so desperate? So what about the third year of high school? It is recommended to take it easy and be more efficient during the day. You can stay up until 11 o'clock at night, but never sleep until 8 o'clock until 3 o'clock.

Please listen to me! This is absolutely bad! As a teenager, you should get more than 8 hours of sleep normally, and even if the landlord writes homework.

It is recommended to sleep 1-2 hours later than to get up so early in the morning, because this will not only affect the growth and development of the landlord, but may also lead to endocrine disorders, memory loss, etc. (maybe you haven't noticed it yet) Growing taller will also be affected! Believe me, I'm definitely a person from the past, don't fight so hard to prepare for the exam, the body is also very important Normal sleep must be guaranteed! ~

The standard of 8 hours is just a standard, and each of us is an independent individual, so some people only need 7 hours, some only 6 hours, all of which are different, and some people live very well without sleeping.

So the key is that you feel for yourself, whether there is any abnormality in the body, such as tiredness or something, but there is a standard for napping, just the standard, half an hour is the best, but the afternoon nap has great benefits, prolonging life.

Everyone is wrong! Everyone's sleep needs are different, Napoleon only sleeps 4 hours a day, Einstein sleeps more than 12 hours a day, they all live well, just like I sleep 11 hours to be satisfied, some of my classmates need 7 hours is enough, this is a problem of the human body, everyone's sleep needs are different, I recommend that you do not set an alarm clock during the holidays, and sleep until you get up naturally, so that you can know your sleep needs!

I slept for about 5 hours.

The damage is great. But it doesn't matter.

If I could sleep, I could sleep for 7 hours. That's it.

Enough.

1. It is enough to sleep 7 hours a day, but people of different ages have different requirements for sleep time, for example, many babies should sleep for about 12-14 hours a day, and some elderly people may sleep for 5-6 hours, which will meet physiological needs.

2. Regardless of the age group, it is recommended that patients should fall asleep at 10 or 11 o'clock at night, which can help them better enter a deep sleep state, relieve fatigue and fatigue, and maintain full energy.

It's up to everyone.

Sleep should generally be maintained for 7 to 8 hours, but it is not necessarily mandatory 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 physiological rhythm, the arrangement of sleep in the morning and evening should vary from person to person in Qinling!

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 or 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, low temperatures in winter.

Dangers of sleeping too long:

1.Damage to the stomach and intestines.

Generally speaking, the normal sleep time of the human body is 6-8 hours, if the sleep time is too long, more than 9 hours a day, physical activity is reduced, which will cause some damage to the stomach and intestines.

It takes a certain amount of time for the food in the stomach to be digested and absorbed, but after absorption, there is no food in the stomach to provide digestion, but the gastric juice will continue to secrete, if you can't get up on time to eat, the stomach and intestines will have hungry peristalsis, and the secreted gastric juice may attack the gastric mucosa and cause damage to the stomach.

2 Affects heart function.

When people are resting, the heart is in a state of rest, heartbeat, contractility, blood output will decrease, if you sleep too much, it will destroy the rhythm of heart rest and exercise, and in the long run, it will make the heart contraction weak, and a little exercise may cause the heartbeat to be inconsistent, and the phenomenon of palpitation.

3 Causes insufficient oxygen supply to the brain.

Weakened heart activity reduces heart ejection, which can lead to a lack of blood supply to the brain. If the brain does not have enough nutrients or oxygen for a long time, it will lead to sluggish thinking, slow reactions, and sleeping for too long will also lead to confusion and dizziness.

4. Gets tired easily.

If you sleep for a long time, you may want to sleep even after sleeping. This is because sleeping for a long time will slow down the body's metabolism, muscle tissue fluid will not get enough oxygen and nutrients**, and it is easy to feel weak and tired.

5.Memory loss.

Sleeping for too long, people will become lazy, and because the sleep time is too long, the brain rests for too long, which will make the cell activity of the brain decline, the sleep center is in a state of excitement for a long time, and the other nerve centers are inhibited for too long, which will make the function of resuming activities slow, and in the long run, it will affect intelligence and lead to memory decline.

6 Decreased resistance.

Sleeping in the room for a long time and doing little activity will lead to a decrease in the body's resistance and make it easy to get sick. Moreover, there is no ventilation in the room, and some harmful bacteria, viruses, and dust in the air can easily enter the respiratory tract, resulting in respiratory diseases.

7 Increase the chance of gallstones.

Generally speaking, 7-8 a.m. is the best time to eat breakfast, but if you sleep too long and can't eat on time, the bile secreted in the gallbladder will not be discharged on time, which may increase the chance of gallstones.

8 Induce stroke.

People who sleep more than 9 hours a day have about 70% higher risk of stroke than those who sleep 7 hours. Especially for the elderly, the blood viscosity of the elderly is relatively high, and if you sleep for too long, it will lead to an increase in blood viscosity, which is easy to induce cerebrovascular diseases such as stroke.

Studies have shown that after a night without sleep, it takes an average of about a week for learning and memory levels to return to the state before staying up late.

Prolonged lack of sleep can cause confusion in the brain, making it difficult to concentrate, but also significantly reducing calculation and memory.

There are countless examples of other diseases caused by staying up late, such as people who often stay up late are more likely to gain weight and are more likely to suffer from serious diseases such as diabetes and coronary heart disease.

We need to pay attention to sleep in our daily life, pay attention to the regular work and rest, regular diet, and try not to stay up late unless necessary.

Adults generally sleep for 8 hours, and the lunch break is not too long, 20-30 minutes is enough. It should be more than 10 hours for children and 4-6 hours for seniors. In the case of illness, the sleep time may be different, and the above is a normal physiological need.

In individual cases, some people may have slightly more, while others may have slightly less.

People should maintain good work and rest habits, go to bed on time, get up on time, and keep the biological clock constant.

Maintain a good mood, avoid emotional anxiety, usually listen to more relaxed **, avoid excessive stress, and can properly engage in physical activities during the day, so that the body has a sense of fatigue, and you will sleep more soundly at night. Adults generally sleep for 8 hours, and the lunch break is not too long, 20-30 minutes is enough. It should be more than 10 hours for children and 4-6 hours for seniors.

In the case of illness, the sleep time may be different, and the above is a normal physiological need. In individual cases, some people may have slightly more, while others may have slightly less. The normal sleep time for adults is 8 hours, some people may sleep for 7 and a half hours to relieve fatigue, and some people may need more than 8 hours, for reference only.

People should maintain good work and rest habits, go to bed on time, get up on time, and keep the biological clock constant. Maintain a good mood, avoid emotional anxiety, usually listen to more relaxed **, avoid excessive stress, and can properly engage in physical activities during the day, so that the body has a sense of fatigue, and you will sleep more soundly at night.

Sleeping less than a Hu Ming shirt for two hours a day is actually staying up late. In the long run, your brain will become dumb, your body will age, your mood will deteriorate, why?

According to research, sleeping less than one or two hours a day can affect the cognitive function of the brain, which refers to the brain's ability to process information, memory, attention, judgment, decision-making, etc. Studies have shown that reducing sleep by two hours a day for two weeks and not sleeping for 48 hours can reduce the cognitive function of the brain and make people stupid. And chronic sleep deprivation requires more recovery time than an overnight stay.

Therefore, lack of sleep for a long time seems to save time, but in fact, the gains outweigh the losses.

In addition, sleeping one or two hours less every day will also accelerate the aging of the body.