People are born with a fear of the dark, and children will amplify this fear. Precisely because children are afraid of the dark, many parents will light a night light for their children. However, although the light in the dark can bring a sense of security to the children, it may

People are born with a fear of the dark, and children will amplify this fear. Precisely because children are afraid of the dark, many parents will light a night light for their children. As everyone knows, although the light in the dark can bring a sense of security to the children, it may cause various health problems to the body. harm.

Reduced human immunity

There is an endocrine organ in the human brain called pineal gland . The main function of the pineal gland is to produce a large amount of melatonin at night when the human body enters sleep. Melatonin can inhibit the excitability of our body's sympathetic nerve , lower blood pressure, slow down the heart rate, rest the heart, enhance the body's immunity, and kill cancer cells. However, sleeping with the lights on for a long time will inhibit the secretion of melatonin, which will reduce the body's immunity in the long term.

affects the growth of children

When nutrition is sufficient, it is growth hormone that determines the speed and duration of a person's height growth. Children secrete growth hormone during sleep. When the lights turn on, the level of growth hormone will decrease, which will affect the growth rate and is not conducive to growth. The most intense period of growth hormone secretion is from 10 o'clock at night to 2 o'clock in the morning when you are in a deep sleep state.

affects children's vision

Research shows that if a child sleeps in a dark room before the age of two, the myopia rate is 10%; if a child sleeps in a room with a night light, the myopia rate is 34%; if a child sleeps in a room with big lights on, the myopia rate is 55% . Night is a time for the eyes to adjust and relax. Darkness sends a signal to the eyes, telling them that it is time to relax the eye muscles.

Turn on the light when sleeping. Even if you are asleep, the light will continue to stimulate the eyes, and the muscles, nerves and muscles inside the eyes are still in a tight state. If accumulated over a long period of time, it may cause eye fatigue and affect the normal vision development of children. Can easily lead to myopia.

Are you still sleeping with the light on? Sleeping with lights on for a long time will cause some changes in the human body that are not conducive to health. Any small details ignored in life can have an impact on our health. Let us work together to avoid the adverse effects of sleeping without lights. Turn off the lights and go to bed to create a good sleeping environment and protect our long-term health!