What is a normal sleep time? How to stay asleep?
9- 1 1 pm is the time for the immune system to detoxify. During this time, you should be quiet or listen to music. At night 1 1- 1 am, the liver should be detoxified while sleeping. 65438+ 0-3 am, the detoxification of gallbladder is the same. At 3-5 am, the lungs are detoxified. This is why people who cough the most during this time, because the detoxification has reached the lungs; Do not use cough medicine, so as not to inhibit the elimination of waste. At 5-7 in the morning, the large intestine is detoxified and you should go to the toilet to defecate. At 7-9 am, when the small intestine absorbs a lot of nutrients, it is time to eat breakfast. It is best for patients to eat early, before 6: 30, and before 7: 30 for health-preserving people. People who don't eat breakfast should change their habits, even if it is postponed until 9 o'clock or 10, it is better than not eating at all. Midnight to 4 am is the time for spinal hematopoiesis, so you must sleep soundly and don't stay up late. The color of skin depends on the content and location of melanin in epidermal cells and the degree of contraction and expansion of skin blood vessels. These factors are regulated and controlled by neurohumoral endocrine system, and sleep plays a leading role in it. During sleep, the capillary circulation of skin increases, and its secretion and clearance process are strengthened, which accelerates skin regeneration. Smooth, ruddy and elastic skin depends on the sufficient nutrition supply of microvessels in the dermis. The skin blood vessels are smooth, and the skin is ruddy and shiny; On the other hand, the color is dim, or it looks pale and lacks nutrition, which makes the subcutaneous cells rapidly age, wrinkle and even become rough. Lack of sleep will lead to the stagnation of skin capillaries, blocked circulation, so that skin cells can not get sufficient nutrition, thus affecting skin metabolism, accelerating skin aging, and making skin look dull. After getting enough sleep, people can improve the circulation of skin endings, eliminate the stagnation of skin capillaries, fully supply the nutrients needed by skin tissues and cells, and correct and prevent premature skin aging. Black eyes are one of the defects of beauty. Lack of sleep or frequent insomnia can cause abnormal changes in skin pigment around the eyes and dark circles; Lack of sleep can also make the whites of the eyes turbid, and turbid eyes give people a feeling of lifelessness and old age; Long-term lack of sleep, crow's feet will inevitably appear prematurely, and using any cosmetics will not help. Sleep and skin care To keep your skin healthy, you should pay attention to nutrition and cleanliness. In addition to day cream, there is also night cream specially applied before going to bed in the cosmetics market. The advertisement says that applying night cream at night can nourish the skin. In fact, the outermost epidermis of the skin has no blood vessels, and its nutrition comes from the blood supply of the dermis. The absorption of the epidermis is quite limited, which is obviously unreasonable from the perspective of skin protection. How can we ensure that the skin has enough nutrition? Just as people need to rest in time, skin also needs reasonable rest and care. The metabolism of the skin is the most vigorous at night, and the blood supply is the most abundant during sleep. At this time, the muscles, internal organs, especially the consumption system of human body are in a relatively bottleneck state, while the skin blood vessels are completely unblocked, and blood can fully reach the skin, providing it with sufficient nutrition and oxygen. With the supply of blood, the skin can self-repair, self-regenerate, and play a role in preventing and delaying skin aging. So the beauty of skin is actually conceived in sleep. If you miss the chance to sleep, I'm afraid your beautiful skin will be hurt and become dry, rough, dull and wrinkled. If there is something wrong with your sleep quality, you should take immediate measures to improve it. What effect does lack of sleep have on skin bodybuilding? Sleep is an indispensable physiological activity for human beings. For women, sleep has a special beauty function. Adequate sleep has both physiological and psychological benefits for beauty. Adequate sleep gives physiological organs a chance to rest and absorb nutrients. Getting up in an energetic morning will make you full of confidence, bright smile and full of energy. Because night is the best time for human skin cells to regenerate, much faster than during the day. However, city life is so hectic that 24 hours a day is not enough. Some people often reduce their sleep to increase their working hours. There are also some modern young people who like nightlife and have "marathon" entertainment all night. In the long run, it will not only affect skin fitness, but also adversely affect health. Poor sleep can be seen in the early hours of the morning, and people who suffer from insomnia or lack of sleep for a long time may even look haggard and depressed, which will affect their appearance. Therefore, the rest time must be well allocated. You should sleep at least 8 hours a day to get a full rest. Good sleep is good for skin health, but be careful not to sleep too much. For the average person, 8 hours of sleep every day is enough. Too much sleep will lead to facial edema or eye bags falling. "Women who love to eat age early, and women who love to sleep are beautiful." This is a famous saying of Audrey Hepburn, a famous American actress. Hepburn is not only the Oscar winner, but also the crown of "Sleeping Beauty". She is particularly good at "sleeping" and is famous in the circle. Ladies may find that if they get enough and effective sleep, they will be radiant, their skin will be shiny and elastic, and their skin color will be rosy and full. Different ages need different sleep time. As an adult, sleep time is relatively stable. The results of most questionnaires show that most normal adults sleep for about 8 hours. But just as everyone looks different, there are individual differences in the length of sleep. For everyone, the sleep time that can ensure their comfort and energy is the most suitable for them. Dr Donna sweeney, a famous sleep expert, said, "I usually calculate the amount of sleep a person needs according to the degree of wakefulness in a day. My formula is simple. If you are energetic and energetic during the day, it means that you have enough sleep. " People's sleep is influenced by many factors, such as environment, personal functional state, mood, disease and so on. There are individual differences, sleep time varies from person to person, and it cannot be "one size fits all". Age is a very important factor affecting sleep. Different ages have different sleep needs. From birth to childhood to adulthood and old age, a person's daily sleep time gradually decreases, which is relatively stable in adulthood and gradually decreases in old age. Generally speaking, newborns sleep 17~ 18 hours a day; 1 year-old sleeps every day 13 ~ 14 hours; When I was 4 years old, I slept 10~ 12 hours every day; 10 years old, sleep 9 ~ 10 hours every day; Sleep for 7.5~8 hours every day after the age of 20; At the age of 65, I slept about 6.5 hours a day. The above is a general statement. For specific individuals, these figures cannot be set rigidly. How much everyone sleeps should also be considered according to their own physique, nutritional status, living conditions and environment, as well as comprehensive factors such as mental and physical strength and labor intensity. In the questionnaire survey of 654.38+00000 people, it is found that 80% of adults sleep within 7-9 hours every day. Another survey of 800 people shows that the average sleep time of adults is 8.5 hours, which means that adults can sleep for 8-9 hours to meet the sleep needs of most people. There is a follow-up study on the relationship between sleep time and mortality in the United States. According to this survey, the death rate of people who stay in bed for 7-8 hours is less than that of people who stay in bed for 7 hours or more. The data also shows that most people sleep for 7-8 hours a day. According to these surveys, most adults sleep for about 8 hours. The more sleep, the better. Only the amount you really need is the healthiest. The quality of sleep is the most important, and the length and times of bed rest will affect the quality of sleep. The length of sleep after training can be controlled by yourself. Lack of sleep, people will have poor energy, slow reaction, decreased memory and decreased immunity. Others think that getting too little sleep is easy to get old. Short sleep time does have a causal relationship with aging. Lack of sleep will lead to low repair ability of the body, and the result is aging of the brain. But sleeping too long is not a good thing. Some people think that the more sleep, the better, which can maintain the brain. They sleep for more than ten hours every day, but the result is just the opposite. The more they sleep, the weaker they get. Because of the long sleep time, the normal cycle of sleep and awakening is changed, and the rhythm of human biological clock is disrupted, thus making the brain in a state of inhibition for a long time. People's physiological activities and metabolism are low for too long, but it is not good for their health. Long-term sleep will also make the cells responsible for sleep in the brain tired, and dizziness and discomfort will occur after waking up. Too much time in bed often leads to shallow sleep, which is beneficial to sleep by increasing wakefulness and reducing extra time in bed. It is necessary to strictly control the sleep time within the required range and deepen sleep. Whether you feel awake and energetic the next day is the only indicator to measure whether you have enough sleep. If you reach this target, don't sleep more. Those who fall asleep quickly and deeply generally have no dreams or fewer dreams, and they can fully recover their energy after sleeping for 6 hours; Those who fall asleep slowly, have shallow sleep and often have nightmares can't feel refreshed even after sleeping for 10 hours. At this time, it is necessary to improve the quality of sleep through treatment. Simply prolonging sleep time is harmful to the body.