Is turning on the light for a long time harmful to human body?

Whether children can grow up healthily is a concern of every parent. The day before yesterday, a report in Henan Minsheng Channel "Great Reference" attracted the attention of some parents. The report pointed out, "The First Affiliated Hospital of Zhengzhou University admitted a 10-year-old patient with a height of just over one meter. At first glance, the doctor thought he was only five or six years old. After examination, the doctor found that the child's bone age development was four years slower than that of normal people. "

In this regard, the doctor said that "going to bed later and later, even sleeping with the light on, leads to a decrease in melatonin secretion. If this is repeated, children will become more and more unable to sleep, thus forming the habit of sleeping late, which seriously affects the growth and development of children."

Many friends know that sleeping late is harmful to our health. But sleeping with the lights on for a long time will also affect health, especially the health of children, but many people don't know. So what are the hazards of turning on the light for a long time?

0 1, which leads to the decrease of melatonin secretion and affects physical development.

Melatonin is secreted in large quantities in a dark environment. If you stay in a bright environment for a long time, your sleep quality will be affected. In the long run, you will get into the habit of staying up late. The child's physical development is at that stage, so it will indirectly lead to physical dysplasia and short stature, just like the "patient" mentioned above.

02, bring harm to vision.

When friends look directly at the sun, they will definitely feel that they can't open their eyes and are very uncomfortable. Although the light is not as strong as the sunlight, we can always feel the light source when we sleep, which will also lead to poor sleep, which will do great harm to the eyesight of the eyes and seriously cause abnormal ciliary muscle function.

03, leading to endocrine disorders, mental state deterioration.

The cycle of hormone secretion is relatively fixed. If you don't sleep well and suffer from "light disturbance" for a long time, it is likely to lead to a person's endocrine disorder and the whole person's mental state will become very poor. In addition, the reduction of melatonin will also lead to premature secretion of estrogen, which will lead to precocious puberty.

04, decreased immunity

Man is not a machine and needs enough rest. If it is difficult to fall asleep under strong light for a long time, the function of the human body will not be restored and the heart will not be able to rest. Not only will fatigue not be eliminated, but it will also increase. In this case, the human immunity will decline, which is more serious for a person's health.

It can be seen that we should not sleep with the light on, after all, it is harmful.