Many people have the habit of sleeping with the light on at night, but sleeping with the light on is very harmful to the body, what are the hazards? Let's get to know.
Sleeping with lights on can lead to obesity
Nowadays, there are not a few people who turn on the light to sleep at night. Some people forget to turn off the light or don't want to turn it off because they sleep too late at night; others simply don't turn off the light because they are afraid of the dark environment, so they feel more 'safe' to sleep in the bright environment. In fact, sleeping in a too bright environment is not good for your health. Today, I'd like to introduce three of the hazards. Let's take a look at them.
1. Obesity. According to Hebei news network, researchers have done many researches on the relationship between the intensity of indoor light and human health during sleep, and found that too strong indoor light during sleep will increase the risk of obesity. Zhao Zhansheng, chief physician of the Department of Endocrinology, the second hospital of Hebei Medical University, explained that if the light in the sleeping environment is too bright, it will cause circadian rhythm disorder, leading to a decrease in the secretion of pineal hormone called melotonin, which plays an important role in body weight regulation and glycolipid metabolism.
2. Insomnia. According to a study published in the British Journal of physiological report, melatonin is a hormone that can promote sleep, and exposure to bright light during sleep may cause the human body to stop producing melatonin, thus affecting sleep quality and causing insomnia.
3. Depression. Shi Ming, deputy director of Shanghai Medical Cooperation Center for insomnia of traditional Chinese medicine, pointed out in an interview with life times that if you sleep in a bedroom with too much light, it will cause disorder of the body's biological clock and endocrine system, which will cause some sleep problems and change people's mood. In the long run, it will increase the risk of depression.
It can be seen that too much light in the bedroom will indeed cause many health problems. It is better to sleep in a darker environment. It is suggested that people should use the light that can adjust the brightness in the bedroom, turn it down a little at night, and remember to turn off the light before going to bed; if there are bright street lights outside the window, a thick curtain should be hung in the bedroom.
What's the harm of sleeping with the light on
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Research has found that our brain contains a kind of pineal gland, which can secrete melatonin when the body goes to sleep at night. Melatonin has a huge effect on the human body. It can not only lower blood pressure and slow down the heart rate, but also enhance our body's immune ability. Without melatonin, cancer cells and tumor cells in the body will rapidly fission and grow, and the damage to our DNA will multiply, which will lead to a large increase in the risk of cancer.
Causing precocious puberty in children
Under normal circumstances, the hormone secretion in our body has a fixed time point. For example, the highest androgen secretion time should be 7 or 8 in the morning, that is, when the light is better. Experts tell us that too long light will reduce the amount of melatonin secreted by our body, lead to the premature secretion of follicle estrogen in girls, so the child's chest will be prematurely raised and other sexual organs will develop early.
Children with eye disease
The harm of turning on the light to sleep is more on children, especially on infants or young children. At present, many new mothers like to sleep with the lights on at night, which is for the convenience of breastfeeding and taking care of children at night. But do not know, too strong light on the new baby's glasses. Vision causes serious damage.
According to the latest research results, children who turn on the light before the age of two are 34% more likely to have myopia in the future. Children who turn on the light after the age of two are 55% more likely to have myopia in the future, while children who turn off the light to sleep are only 10% more likely to have myopia.
Experts tell us that between the age of two and three is the critical period for the development of the baby's vision. The light environment at this time plays a decisive role in the future vision of the child. Turning on the light for a long time will lead to the pupil can not really relax and rest, and the nerves and muscles on the eyes are always in a tight state. In addition to the high probability of myopia, the hazards of long-term sleep include increasing the probability of cataracts and so on.
Lead to imbalance of yin and Yang in the body
From the perspective of traditional Chinese medicine, the human body is in a state of repair when sleeping, making our body and mind reach the best state. That is to say, human needs day and night, so that the body can achieve the best balance of yin and Yang. Turn on the light to sleep will make our body's Qi disorder, so people are prone to fatigue, can not get the best rest. At night, the harm of sleeping with lights on is light neurasthenia, insomnia, and serious internal dysfunction, cancer and so on.
Light pollution
The study found that women's long-term exposure to light doubled their risk of breast cancer and increased the risk of prostate cancer around the mountain. It is very harmful to turn on the lamp for a long time, especially to turn on the headlamp with strong light suddenly. As early as 2007, the World Health Organization classified night shift as a health risk category.
Ways to reduce the harm of sleeping with lights on
1. If you must turn on the light to sleep, you can use eye mask and so on to avoid light pollution;
2. Use warm night light instead of strong light, such as red or orange night light, the light of this kind of light will be more soft and will not cause great harm to human body;
3. Use step by step method to correct the bad habits of sleeping with lights on;
4. Increase the daily intake of nutrition, such as some vitamins and cyanohydrin, etc., so we should eat more information vegetables and fruits, and also can assist some aerobic exercise, etc;
5. Supplement appropriate amount of melanin. If the problem is serious, supplement some supplements to increase the content of melatonin in human body. However, special attention should be paid to that it should be taken under the guidance of the doctor, and it should not be taken at will.
It is a very unscientific living habit to sleep with the light on. Through this article, we know the harm of sleeping with the light on, so we must slowly change this bad living habit. Only when we keep away from insomnia, can we have a good quality of insomnia. Only in this way can we have abundant spirit and vitality, and can we have a healthy body.