Introduction to the necessity of going to bed early.
Cell division is mostly carried out in human sleep. Once the sleep pattern is disordered, it is difficult for the body to control the mutation. An Australian research society reminds people not to be too addicted to nightlife and night work. It is necessary to adjust rest and sleep and actively treat insomnia. Sleep can be characterized by slow wave phase and fast wave phase. In the slow wave stage, the pituitary gland increases the secretion of auxin, promotes the growth and metabolism of the body, and restores physical strength, so it is called "body sleep".
In the fast wave period, cerebral blood flow increases, brain oxygen consumption increases and brain power recovers, so it is called "brain sleep". Adults go to slow-wave sleep first, then turn to fast-wave sleep after 80 ~ 120 minutes, and then turn back to slow-wave sleep after 20 ~ 30 minutes. If the sleep cycle is repeated exactly four times a night, people will feel refreshed and exhausted after getting up in the morning. Therefore, it is very important to arrange sleep scientifically.
1. Can people not sleep? At present, there are several theories about the importance of sleep. One of them thinks that sleep is to rest the body and reduce energy consumption. During sleep, the body's failed cells will begin to repair. Another theory points out that when you sleep, you go through different cycles, and each cycle has different effects on your brain. The whole sleep cycle can be divided into two categories: non-rapid eye movement (NREM) and rapid eye movement (REM). Enter the "non-rapid eye movement phase" (NREM), and gradually enter the deep sleep phase as the brain waves become slower and slower. Deep sleep is very important for the repair of the body. If a person has enough sleep in a deep sleep, he will feel rested when he wakes up. So sleep is very important for various functions of the brain and body.
2. How long is the best sleep time in a day? Everyone is affected by genes, so it is best to sleep for a few hours. A person sleeps about 7-8 hours on average, but this number often changes with the development of society. The more industrialized the country, the shorter the sleep time. How long does it take to sleep? It depends on both personal needs and the influence of social environment. The best standard depends on how you feel after waking up on weekdays, whether you are in good spirits, whether you feel relaxed and whether your daily life will be affected.
3. What are the sleep needs of different age groups? Generally speaking, children need more sleep because their bodies and brain cells are growing. Newborn babies sleep most of the day and have more rapid eye movement cycles. With the increase of age, sleep time will become shorter and shorter. From 18 to the elderly, the total amount of sleep needed every day should be similar. Many people think that old people don't have to sleep that long, but this is not true. Old people need the same sleep as adults, but their sleep will be shallow and easily interrupted, so they often need to supplement their sleep during the day.
4. Is it healthy to go to bed early and get up early? Going to bed early and getting up early is healthier, more correct for people over middle age, and more in line with the physiological cycle after middle age. Because we secrete melatonin earlier and earlier after middle age, we tend to go to bed early and get up early, which is more comfortable. Whether staying up late will harm your health depends on the situation. If your sleep time is different from social customs, it may affect your sleep quality and lead to your long-term lack of sleep. This may harm the body and lead to health problems. Therefore, whether it is going to bed early and getting up early or going to bed late and getting up late, it is important that the sleep process will not be disturbed a lot, and it is best to adapt to your own biological clock.
5. What are the consequences of long-term lack of sleep? The most obvious consequence of lack of sleep is poor performance during the day and even accidents. Studies have found that long-term lack of sleep can lead to inattention, affect immunity, and it is not easy to get better when you are sick. Recently, it has also been found that people who lack sleep have poor blood sugar control, are more likely to be obese, and often have gastrointestinal problems in digestion. For children, lack of sleep will affect their growth hormone, because children's growth hormone is secreted in the first third of sleep, so when the deep sleep period is not enough, they will not secrete growth hormone. Therefore, in addition to spiritual satisfaction, sleep has a great impact on physical health.
6. Always lack of sleep. Are you sick? And narcolepsy? I always feel sleepy, maybe just sleepy. Sleepiness is not a disease, but a symptom of sleep disorder. The most common reason may be "sleep apnea", because snoring and lack of oxygen lead to respiratory interruption, sleep interruption and lack of sleep. In addition, like "body movements", feet twitch when sleeping, and these body movements cause coda waves to run out of the brain, so sleep will be interrupted and it is easy to get insufficient sleep. In addition, such as colds, viral infections, nasal congestion, arthritis, mental illness, chronic diseases, drug-induced drowsiness and so on. , will make people sleep very shallow, but not enough.
7. How about a nap? According to foreign observation, children must take a nap. The younger you are, the more times you need to sleep. After primary school, they don't have to take a nap. So it's uncertain whether a nap is good or not. If you are in a bad mood in the afternoon, it is recommended to take a nap, but it is best not to exceed half an hour. Sleeping for more than two hours will make you more tired, because you will feel more tired when you enter REM.