In daily life, many people often turn on the light to sleep, especially some children are afraid of darkness, so parents will turn on a light when their children sleep.
If you occasionally turn on the light to sleep, it will not have a major impact on your health. However, if you turn on the light to sleep for a long time, it will not only easily affect to sleep , but will also cause other harm to the body. So what harm does have to sleep on the light for a long time to the body?
1. Melatonin secretion is affected
When turning off the lights at night to sleep, the human body will secrete melatonin . This melatonin has the effect of promoting the growth of and has the effect of promoting sleep .
However, as long as the eyeball can feel the light source, the human body will not continue to secrete melatonin. Once this hormone is not secreted, it will affect the growth of and sleep. For children, it will also affect the development of .
2. biological clock is disrupted
When the light is turned on, the human body's parasympathetic nerve and sympathetic nerve will be disturbed, and the secretion of various hormones in the body will also occur abnormally.
Once hormone secretion is abnormal, it will cause biological clock to disorder . The internal rhythm of the body will have abnormalities, which will not only cause insomnia, dreams, and difficulty in entering deep sleep in , but will also cause to be depressed and .
3. Affect calcium absorption
Especially for children, if they turn on the lights at night for a long time, the body's calcium absorption rate of will drop to about 25% . It is easy to cause growth rate, O-leg , or even rickets . For the elderly, the body loses a lot of calcium. If you turn on the lights for a long time, you will experience severe osteoporosis and .
4. Accelerate skin aging
The human body is very sensitive when it is sleeping. If you turn on the light to sleep, the body will produce light pressure . This light pressure will affect the normal metabolism of , causing the skin's metabolic rate to decrease , and the skin's self- repair effect will also reduce .
Over time, the skin will become very rough and dull. There may even be pigment accumulation, which will cause spots in skin .
5. damages eye health
If you turn on the light to sleep during sleep, the light will make the eyes feel a stronger light source. These light sources will stimulate eye movement , and ciliary muscle function will have abnormalities. Moreover, when the light is turned on and sleeping, the light will pass through the eyelids and the pupils cannot relax and rest. Not only will it reduce vision , but the probability of suffering from some eye diseases will also increase relatively.
6. causes immunity to decrease
For people who turn on the lights to sleep for a long time, the body's immune function will become lower and lower. Because the long-term light-on-sleeping makes it impossible for the human body to enter a deep sleep state, the self- detoxification and repair of each organ will be affected, resulting in abnormal digestion, metabolism and detoxification . It will lead to a decrease in the body's immunity and the probability of suffering from various diseases will be very high.
In short, turning on the lights for a long time will cause the above 6 hazards to human health. Therefore, in daily life, no matter which group of people you are, don’t turn on the lights and sleep.
And when sleeping at night, if the outdoor light is too strong, you should use thick some curtains appropriately to prevent outdoor light from illuminating into the house, thereby affecting sleep and health.
