Adequate sleep is one of the prerequisites for a child’s growth and healthy development. But more and more children generally sleep late, late sleep brings potential harm to children is unknown to parents, this article will teach children how to sleep, how to sleep, to develop good sleep habits and healthy growth. 1, sleep late so that children do not grow taller, one of the hazards of sleeping late According to the Ministry of Education’s height and weight survey of third-grade students in elementary school, it was found that the average height of elementary school students is shorter than a year. The future pillars of the country “dwarf”, I’m afraid this is partly “attributed” to the excessive pressure of learning, so that children write homework until midnight, long-term work and rest disorders, sleep deprivation. Late sleep or lack of sleep means too much time awake, which is an overstimulation for the body, which in turn triggers the body’s stress response and induces the adrenal glands to secrete adrenaline in large quantities. Adrenaline is a stress hormone, it will inhibit the function of the pituitary gland, resulting in the pituitary gland to reduce the secretion of growth hormone, so that children do not grow taller. 2, late sleep hurts the heart, the harm of late sleep two liver is a “dumb daughter-in-law”, let the work, tolerance is very high, so the first to suffer from lack of sleep is not the liver, but the heart. Sleep-deprived children will have excessive stress reactions, especially young children, who will feel tired due to lack of sleep, be irritable, irritable, hard to calm down, and even show excessive stress reactions that prevent them from sleeping, and the more sleep-deprived they are, the more emotional they become. If they are in a hyperactive state for years, cardiovascular diseases, such as heart valve prolapse, will occur. So let the child sleep late or poor sleep habits, is the same as sowing the seeds of cardiovascular disease for the child, will come to thirty-five years old, this buried cause will erupt into cardiovascular disease. 3, late sleep makes children precocious, late sleep damage of three overage learning will trigger the stress response of the body and mind, and late sleep will also stimulate stress hormone secretion, inhibit growth hormone activity, and affect the pituitary gland on the normal regulation of sex hormones, so children do not grow tall, and precocious sexual maturity. Health principle #1: It is not only when you are tired that you need to sleep, but when the time comes you must sleep. The liver has begun to assimilate at 3pm, so it is not advisable to let your child eat too much after 3pm, and a simple dinner is good, so that your child can go to bed early. Some parents think that their children will go to sleep on their own as soon as they are tired of playing, so they do not urge their children to develop the habit of sleeping regularly. When a child is exhausted from playing, he or she will eventually faint and fall asleep, but this is usually preceded by an emotional phase of over-excitement or nervousness, becoming irrational. Good sleep habits do not develop automatically in children, but require adult assistance to develop them. When it’s bedtime and your child doesn’t want to go to sleep, adults need to put a little more thought into preparing a regular bedtime ritual to help them get into the habit. For example, telling bedtime stories and calming them down so that they don’t fall asleep exhausted, but go to sleep satisfied and wake up satisfied the next morning. This is the ideal pattern of rest for children. Health principle 2: To urge your child to go to bed early, you must first live your own life properly. There are several reasons why adults are unable to urge their children to go to bed early. It is possible that the mother, who takes care of the child full-time, is alone and has not arranged the rhythm of life properly; it is also possible that the parents work too late, the children wait for their parents to accompany them to sleep, and as a result, wait until midnight; it is also possible that the parents return home from work are already six or seven o’clock in the evening, cooked dinner, after eating, the time has passed eight or nine o’clock, until bedtime is naturally after ten o’clock; there are also late Parents who leave work late cherish the time they have with their children, so they delay their children’s bedtime; and children who sleep with their grandparents sometimes see that there are still people awake at home, so they can’t go to sleep, so they develop the habit of sleeping late with adults. A good night’s sleep strengthens brain function and develops the trait of easy relaxation, allowing children to stay in top condition. Simply put, “the mind is clear and the body is relaxed”. Late sleep may cause children to be restless and cry, timid personality, lack of mobility, weak willpower, affect the development of the nervous system, affect intellectual development, but also harm the child’s heart, sowing the seeds of future cardiovascular disease, but also make children grow taller, and even precocious. Health principle 3: The foundation of human health throughout life depends on the liver and thymus gland before the age of 7. The good functioning of human health depends on a solid foundation laid before the age of seven. Running a regular life for your child in order to develop a sense of rhythm in the body is an important task at this stage, and sleep is a major key to creating a regular rhythm of life. During sleep, all the perceptions received during the day are transformed into all the organs and tissues in the body to assist in their growth, development and repair, including the circulatory system, digestive system, endocrine system, skeletal system, nervous system and immune system. It is only during sleep that a young child’s body is able to rest and grow, and recover enough vitality for the next day. The most important organ involved in all these activities is the liver. It is often said that “early to bed and early to rise is good for the body”, but what time do you sleep to meet the criteria of “early to bed”? In terms of the liver’s assimilation, preschoolers should fall asleep between 6:30 and 8:00 pm, while adults must fall asleep between 9:00 and 10:00 pm. To be able to fall asleep at this time, it is considered “early to bed”.