1. Because I sleep on my arm, many nerves are oppressed, and I often feel anxious during my nap, making it difficult to sleep. At the same time, it should be noted that don't rush to take a nap after meals. Because if you take a nap on the table immediately after lunch, it will affect the digestive function of the stomach and cause flatulence.
2. Due to the oppression of eyeballs during sleep, temporary blurred vision usually occurs after a nap. If this happens for a long time, the intraocular pressure will be too high. Over time, the eyeball will swell and the axial length will become longer, which will lead to high myopia and easily increase the incidence of glaucoma.
3. Sleeping on your stomach and pressing your arms and face for a long time will affect normal blood circulation and nerve conduction, making your arms and face numb and even sore. After a long time, it will develop into local nerve paralysis or facial deformation.
================================
Here are a few cases to share with you.
================================
What's the harm of sleeping on your stomach?
Sleeping on your stomach for a long time is easy to cause chronic gastritis.
In the winter and winter of this year 14, I spent two years at school at noon because the school was far from home after I was admitted to junior high school. Recently, Dongdong's mother, Ms. Huang, found that her child had no appetite to eat, and she often complained that she felt stomachache and burped. Ms. Huang took Dongdong to the hospital for examination, and the result surprised her. Dongdong actually suffered from chronic gastritis since childhood. Ms. Huang is puzzled. In winter and winter, her eating habits are normal, and her family's meals are mainly light, and she rarely eats irritating food. And there are no stomach problems among her elders in winter and winter. Why? The doctor inquired about the daily routine of Dongdong in detail and found that Dongdong had the habit of taking a nap. After lunch every day, I will sleep 1 hour in winter and winter, and my sleeping posture is lying on my desk. The doctor pointed out that long-term "sleeping on your stomach" is very likely to be the "culprit" of chronic gastritis in winter and winter.
According to Tan Meizhen, director of the Health Care Department of Guangzhou Children's Hospital, many primary and middle school students can only take a nap at their desks at noon due to conditions, which may help relieve study fatigue, but it will do harm to their health invisibly. "Sleeping on your stomach" first affects the digestive system. This is because it takes the human body at least 1 hour to empty the food in the stomach after lunch. After lunch, the human body takes a nap on the table, and the stomach is oppressed, which increases the burden of peristalsis, easily causes flatulence in the stomach, reduces the ability of the stomach to digest food, and thus affects the absorption of human nutrition. "Of course, sleeping occasionally has little effect on human health, but in the long run, children will definitely get stomach trouble, and it will also affect their development because nutrients are difficult to absorb.
Sleeping on your stomach has many negative effects.
Director Tan pointed out that the posture of "sleeping on your stomach" will keep your child's neck and shoulder muscles in a state of tension, and it is easy for your muscles to ache after waking up. And many students will naturally use their arms as pillows when they sleep on their stomachs. Over time, the radial nerve of their arm will be crushed. If you don't pay attention to it, it will turn into nerve paralysis in the long run. Many students have problems such as shoulder pain and arm pain since childhood, which may have a lot to do with using their arms as pillows.
In addition, after falling asleep, the heart rate will gradually slow down, the speed of blood flowing through various tissues will be relatively slow, and the blood flowing into the brain will be less than usual. And after lunch, more blood will enter the gastrointestinal tract to help digestion. "Sleeping on your stomach" will aggravate cerebral ischemia and eventually lead to dizziness, tinnitus and numbness in your legs.
The posture of "sleeping on your stomach" will also affect your breathing. This is because this posture increases the curvature of your body, oppresses your heart and lungs, increases the burden on your heart and lungs, and leads to poor breathing and insufficient oxygen supply to your body. For female students in the developmental stage, "sleeping on their stomach" will oppress the chest and induce various heart or breast diseases. In addition, due to the heavy weight of the head, the posture of "sleeping on the stomach" is equivalent to pressing the weight of the head on the eyeball, which makes the eyes easily congested, leading to an increase in intraocular pressure and further deterioration of the eyesight of students who are already nearsighted.
How to take a nap is healthy?
Director Tan Meizhen pointed out that in fact, after a morning of study, the human body consumes more energy. Taking a nap after lunch can effectively compensate the mental and physical consumption of human body, which is of great benefit to health. So, what kind of nap can really be good for health?
First of all, pay attention to your sleeping position. It is suggested that the school find ways to increase some facilities for students to take a nap, such as simple canvas beds. Or you can put several chairs together to sleep. Really can't. It is suggested that students would rather lean back in the chair, put a small pillow around their necks, and then stretch their legs as far as possible in another chair to relax the lower body completely. This sleeping position is also better than sleeping on your stomach.
Secondly, it is not advisable to take a nap immediately after a meal. Because the stomach is full of undigested food after lunch, lying down at this time will make people feel full. The correct way is to do some light activities after lunch, such as walking and taking a nap for about half an hour, which is beneficial to the digestion and absorption of food.
Third, the nap time should not be too long, preferably within 1 hour. Physiological research shows that human sleep can be divided into two stages: shallow sleep and deep sleep. Usually, after 80~ 100 minutes of sleep, people gradually change from light sleep to deep sleep. If people suddenly wake up in the deep sleep stage, because the deep inhibition process of the cerebral cortex can't be released immediately and the closed capillary network can't be opened immediately, it is bound to cause short-term blood supply to the brain, the function of autonomic nervous system will be temporarily disordered, and the human body will feel very uncomfortable. This discomfort will last for about 30 minutes before it gradually disappears. It can be seen that the nap time is not as long as possible, but should be within 1 hour, which can effectively eliminate fatigue and not wake up from sleep.
Finally, we must do a good job of keeping warm during lunch break and cover the quilt, because after falling asleep, people's body temperature is relatively low, and the cold and heat between sleeping and waking are uneven, which may easily lead to diseases such as colds.
I just slept for a while and woke up to find that my legs could not move, and I had to be numb for a long time, so my eyes were red when I slept. I don't know if you have noticed that the first reaction of people who crawl to sleep is to tidy up their musical instruments, and some people will secretly wipe the saliva off the table, haha. If in fact, I don't think we have good conditions to work here, so we can only create our own conditions to take care of ourselves. I think the back of the chair can be pressed to a certain angle, so I'd better sleep on my back and wear an eye patch.