Many children are not afraid of darkness when they are young, but become especially afraid of darkness as they grow older, even to the point where they need to turn on the lights to sleep. Whether children are used to turning on the lights to sleep is harmful, and how to correct them, is a question that many parents are more concerned about. Today, Xiaonan will answer them one by one. Turning on the light to sleep is more harmful
1. It is easy to cause growth. Under the premise of eliminating genetics and nutritional supply, the quality of sleep plays a decisive role in the growth and development of the body. In the deep sleep state, 10 o'clock at night to 2 o'clock in the morning of the next day is the period when growth hormone secretion is most vigorous, which makes high-quality sleep important for children's growth and development. If you turn on the light to sleep, the stimulation of the eyeball and the inhibition of melatonin secretion by the light will cause the child to sleep shallowly, which will affect the secretion of growth hormone. We all know that lack of sleep in adolescence can lead to growth, and the habit of turning on the lights to sleep can also cause the same consequences.
2. Affecting vision development There are two types of photoreceptor cells in the human retina-cone cells and rod cells. Cone cells are responsible for daylight perception, while rod cells are sensitive to dark light. In this way, the two types of cells work alternately during the day and night. If you turn on the light to sleep, the cone cells will always work, and the rod cells will not be used. Over time, it will lead to visual fatigue, pseudo-myopia and decreased night vision ability.
3. Increase the risk of precocious puberty Melatonin is a hormone secreted only at night, which is very helpful for improving sleepiness. It also has an important role in inhibiting the secretion of gonadotropin. If the secretion of melatonin is inhibited, it will lead to an increase in the secretion of gonadotropins, which may lead to the initiation of sexual development. Therefore, turning on the lights to sleep will increase the risk of precocious puberty in children.
4. Affecting intellectual development. In deep sleep and light sleep, the level of hormone secretion, metabolic level, body temperature, pulse, blood pressure, etc. are different. Ensuring high-quality sleep is of great significance for improving immunity and promoting children's intellectual development. Turning on the lights at night to go to bed, long-term light sleep state, it is easy to cause the child to have poor appetite, decreased resistance, depression, lack of concentration and other undesirable consequences. Turning on the light to sleep will only increase the risk of the above-mentioned hazards, and the probability of occurrence is related to the combined effect of the time of turning on the light, the intensity of the light, and other factors.