In fact, this key is divided into doing several steps. First of all, we must have a good sleep cycle and lifestyle habits. Many young people in modern society tend to stay up late, or often look at the phone at night or go out at night to play, sing K or eat barbecue, eat snacks, etc., with these bad habits, will certainly affect the quality of sleep, which is the situation of young people. And among the middle-aged and elderly many tend to go to a square dance at night, or dance at night, yoga and other such sports, in fact, these large physical exercise, especially at night, after 7 o’clock in the evening, has a certain impact on sleep, which is also not in line with the natural laws of sleep, including the bad habits of young people, but also easy to affect sleep. Therefore, it is recommended that if you want to get a good sleep, you must stop the bad habits of hobbies, including factors that can easily affect sleep, such as night sports, night running, and the frequent use of cell phones or outings, as well as staying up late these situations should be avoided as much as possible. There is also the use of electronic products, we know that a good night’s sleep is dependent on the secretion of melatonin, and melatonin, a substance sensitive to light, has a certain relationship. So if the frequent use of cell phones at night, the formation of photoreceptor stimulation of the retina, while affecting the cortex, can inhibit the secretion of melatonin, and melatonin secretion is reduced, sleep will move backwards, the formation of late sleep, or melatonin secretion is reduced, and then serious insomnia will be formed. So to get a good sleep, you must change bad habits.