Doctors believe that people don't have to care too much about how long they sleep. The key is the quality of sleep. Maintaining a regular daily life and paying attention to maintaining an appropriate sleep pattern are the basis for maintaining health. Especially for young people, sleep has great flexibility. Even if sleep time is sacrificed for some reason, deep sleep can make up for the lack of sleep quality.
Sleeping in bed is harmful to physical and mental health.
In today's fast-paced life, study and work are very tense. Adequate sleep is indispensable for human life activities, and it is also a necessary condition for relieving fatigue and restoring physical strength and energy. However, some people mistakenly believe that sleeping more is good for health, especially for the growth and development of teenagers, so that they can't stay in bed whenever they have the opportunity, which greatly exceeds the need for sleep. This is a bad habit. According to research, in the long run, it will damage physical and mental health.
The law of human life is closely related to the secretion of hormones in the body. Many hormones secreted by people who live a regular life, such as the hypothalamus and pituitary gland, are relatively high in the morning to evening and relatively low at night to dawn. If you live regularly on weekdays and sleep on holidays, it may disrupt the timing of the biological clock in the body and make the hormone level fluctuate abnormally. As a result, the hormone level can't go up during the day and can't come down at night, which makes the brain excited and inhibited, making people unable to sleep for a long time at night, fidgeting and exhausted during the day. This will also lead to the decline of the body's resistance, easy to be infected by pathogens, and induce many diseases, so we must pay attention to the balance of sleep time and maintain a good life pattern.
The air in the bedroom is cloudy in the morning. It has been determined that the air contains a lot of bacteria, molds, fermented grains, carbon dioxide gas and dust, which can easily damage the respiratory system and induce colds, coughs, pharyngolaryngitis and dizziness. After a long time, it will also damage memory and hearing.
After a night, my stomach was empty and I felt obviously hungry. The gastrointestinal tract is ready to accept and digest food and secrete various digestive juices. At this time, if you are bedridden, it will inevitably disrupt the law of gastrointestinal function. Over time, gastrointestinal mucosa will be damaged, which is easy to induce gastritis, ulcer and indigestion. When people lie in bed, especially after falling asleep, their metabolism and energy consumption decrease. Especially now, their living standards have improved and they are rich in nutrition. If they sleep longer than normal people, their energy will "go in more than out" and accumulate under the skin in the form of fat, and they will not become "little fat" for a long time. Nowadays, in the institute of modern medicine, it is more dangerous for teenagers to be overweight than me. Heart disease, hypertension, diabetes and limb deformity in adulthood are all directly related to this.
Foreign psychologists have also found that masturbation of teenagers often occurs in a vague state after waking up in the morning, because it is easy to produce rich sexual imagination at this time, which leads to sexual excitement and masturbation. Although the harm of modern medical viewpoint to adolescent masturbation is not as terrible as previously thought, long-term masturbation will consume more energy elements such as oxygen, blood sugar, protein, lecithin, and increase psychological burden, which will undoubtedly damage physical and mental health and affect study and work.
Therefore, we should cherish the precious fitness and study time in the morning, cherish our physical and mental health and get rid of the bad habit of staying in bed.
The disadvantages of staying in bed
Sleep is a necessary life activity for human body. According to foreign observation and measurement, teenagers have 6.5-8 hours of good sleep, and 9 1.7% people can get rid of fatigue and recover their physical strength. Many people think that sleeping more during the development period is beneficial to organ development and physical and mental health; Can enhance the biological activity of the body; People will grow taller and stronger. Japanese health experts point out that the above three concepts are all wrong, and they are often used by parents as the best reason to "protect" their children from sleeping late, so it is very harmful. A normal teenager who often stays in bed and gets up late (10 hours or more) will not increase his spirit, but will often cause the following six "complications".
Obesity often stays in bed, but does not pay attention to a reasonable diet (eating a lot of meat and sweets). The other is not very active. Three-pronged approach, energy reserves will be greater than consumption, in the form of fat accumulated under the skin. It only takes about a year and a half, and you will find yourself a little fat. Obesity does not subside, and the potential harm is not shallow. Epidemiological surveys in Europe and America have found that diseases such as heart disease, hypertension, mastopathy, diabetes, and limb deformity in adulthood are all related to teenagers' bad living habits, among which eating disorders and sleepiness account for a certain proportion. Therefore, teenagers with obesity trend must give up sleepiness more, while they are still in the shaping stage, cooperate with exercise, dieting and other methods to restore their vigorous figure and good mental outlook, and don't let themselves become a little fat man who loves to sleep late. In addition, some people find that lying in bed can also make people wander aimlessly. After getting up, I feel top-heavy, weak, upset and don't want to do anything. According to the analysis, this may be because "using the brain" in bed consumes a lot of energy elements such as oxygen, blood sugar, protein and lecithin. , make the brain tissue appear temporary "malnutrition", can't work normally.
Breaking the biological clock effect, traveling by plane across time zones, especially to Europe and America, often leads to dizziness, insanity, rapid heartbeat, lack of food, fatigue and other symptoms when you first arrive in a certain place. If you are an athlete, it will often affect your performance. Are you sick? No, it's just the so-called jet lag. Joking with the body is the difference in space distance and time, which is related to the fluctuation of hormones in the body. Let a person on the day shift take a hormone test. The results show that the concentrations of many hormones secreted by hypothalamus and pituitary gland are relatively high from morning to night, but relatively low from night to dawn. The middle and late shift workers are the opposite. If you live a regular life, but sleep late on holidays, it will disrupt the timing of the biological clock in the body and make the hormone level fluctuate abnormally. As a result, the hormone level can't go up during the day and can't fall down at night, which makes people sleepy at night, fidgeting and exhausted during the day. It can be seen that the secretion of hormones is very regular and closely related to people's living habits. Bad living habits, especially sleeping habits, will inevitably disrupt the normal work of endocrine and directly affect people's behavior.
Generally speaking, a moderate dinner is basically digested around 7 am the next day. At this time, the gastrointestinal tract began to move according to the body's "hunger" information, ready to accept and digest new food. However, those who lie in bed lose their appetite because of comfortable sleepiness, preferring to have an empty stomach rather than get up to eat. Day after day, due to the frequent occurrence of hunger and peristalsis in gastrointestinal tract, the integrity of mucosa is destroyed, and diseases such as gastritis, ulcer and digestive and absorption dysfunction are prone to occur.
Low muscle tone. After a night's rest, muscles and joints usually become more relaxed in the morning. If you get up immediately after waking up, on the one hand, you can increase the tension of muscle tissue to adapt to daytime activities. On the other hand, through exercise, muscle blood supply increases? Make muscle tissue in active repair state, and at the same time discharge metabolites accumulated in muscle at night. This is beneficial to the thickening and toughening of muscle fibers. People who only care about staying in bed often feel weak legs, lumbosacral discomfort and limb weakness after getting up because they missed the opportunity of activities. People who don't know the truth think they didn't sleep well and plan for the next day's lie-in. Compared with foreign sports anthropologists, the muscle tension of teenagers who get up late is often lower than that of ordinary people. In other words, people who lie in bed have insufficient muscle explosive force and slow action response.
The air in the bedroom is the most turbid in the morning. Even if the windows are not locked, 23% of the air cannot be circulated and exchanged. You will be surprised if you take samples from the local area. The air contains a lot of bacteria, mold and fermentation particles, carbon dioxide, moisture and dust. It goes without saying that these unclean ingredients will bring trouble to the body. No wonder those who sleep with the windows closed often have colds, coughs, sore throats and dizziness. In addition, high concentration of carbon dioxide will stimulate the respiratory center, making people uncomfortable to breathe. Some people think that frequent carbon dioxide poisoning may reduce memory and hearing.
When teenagers are in good health, about 96% of the tissues and organs are still under construction, so we should take good care of them. Lying in bed is an unsanitary living habit and trampling on one's body and mind. It kills time and wastes valuable fitness and morning study time. It is really a stumbling block that hinders the healthy development of teenagers in all aspects. We should consciously resist it for a long time.
The weather is getting colder and colder, and many people complain that it is getting harder and harder to get up on time. When they woke up, the bed was so warm that they really didn't want to get up. Because they stayed in bed and didn't care about breakfast, they ran out. I really don't know what to do.
I like staying in bed because I don't have enough rest time and I can't get up the next day. Second, the lack of strong will, especially in winter, the temperature in the bed is very different from that outside, and people are unwilling to get up because they are afraid of the cold. Let me make two suggestions.
1. Arrange the schedule scientifically. I suggest making a scientific schedule for myself. At the same time, we should form a good habit of going to bed early and getting up early, and change our bad habit of staying in bed in the plan.
2. Cultivate strong willpower. Early to bed and early to rise is good for your health. It is necessary to get up early. Once you decide to form a good habit, you must overcome the original negative qualities of your personality, such as slackness. It's time to test you when the weather turns cold. Get up early as usual. If you have difficulties, you need to face them, or you will give up halfway.
At the same time, we should also change the habit of upside down day and night. Recognize the importance of time, let it have the concept of punctuality and timing, and let it naturally stay away from the bad habit of staying in bed.