Dark environment can often make people fall asleep faster at night, so everyone will turn off the lights at night. But some people are more used to sleeping with the lights on. Everyone's living habits are different, but is it really good for your health to turn on the light at night? Will it affect the quality of sleep and have some other consequences?

1, turn on the light and sleep at night, which increases the risk of diabetes. The level of insulin resistance of people who sleep with lights on is significantly higher than that of people who sleep in dark rooms at night. In other words, people who sleep under the light have a greatly increased risk of developing diabetes. As we all know, the level of insulin resistance directly reflects the ability of insulin to lower blood sugar. The main problem of diabetic patients is insulin resistance.

2. Turn on the light and sleep. You may get fat.

Women who are used to sleeping with the lights on at night tend to be fatter and have thicker waistlines. The longer they spend at night, the fatter they get, although there is not enough evidence to prove that if they turn off the lights and sleep, they may lose weight immediately.

3. Inhibit the secretion of growth hormone

Too long illumination time at night will inhibit the secretion of auxin. I specifically talked about growth hormone, which is a hormone that can promote fat decomposition. Especially for adults, growth hormone is inherently low. Dieting is a way to promote the secretion of growth hormone, and high-intensity exercise such as strength training is also effective. Sleep is also important. If you turn on the light to sleep, it will affect the secretion of growth hormone and the effect of reducing fat.

4. It may aggravate depression.

The brain changes after long-term illumination at night are similar to those of patients with depression. Luminous light affects people's mood, mainly because melatonin, under the strong light irradiation at night, will affect the secretion of melatonin. Melatonin has a great relationship with mood, especially seasonal mood disorder (winter depression). Studies have found that melatonin can alleviate seasonal emotional disorders.

5. Increase the risk of cancer and breast cancer.

Long-term night light may increase your risk of breast cancer and other cancers. The probability of breast cancer in blind women is much lower than that in normal women. Similarly, the probability of prostate cancer in blind men is much lower than that in normal men.

In addition, women who work at night shifts have a much higher risk of breast cancer than women who work at night shifts. The main reason is related to melatonin, and the reduction of melatonin will increase the risk of breast cancer.

6. It may affect the height of the child.

Light will affect the secretion of melatonin and growth hormone. The importance of sleep to children, and this small lamp, melatonin reduction, will directly affect the quality of children's sleep. Night lighting can also affect the height of children. Growth hormone is very important to a child's height. Growth hormone begins to be secreted in large quantities after the child falls asleep, but in the case of light, the secretion of growth hormone will be greatly reduced.

7. It may also increase the risk of leukemia in children.

Night lighting leads to a decrease in melatonin secretion, which may increase the risk of leukemia.