Sleep is a complex process. During sleep, a person will first enter a slow-wave sleep period, followed by a rapid eye movement sleep period, thus forming a sleep cycle, and there are about 4-6 such sleep cycles in a night. When a person wakes up, sometimes he/she will feel that his/her physical strength is well restored, but sometimes he/she will feel more tired than before he/she went to bed. This is due to the different depths and states of sleep. Some people sleep for a shorter period of time but have a longer period of deep sleep, which is the best time for the body to repair itself, and deep sleep usually occurs at 12:00 pm at night to 2:00 am. Therefore, in order to ensure the quality of sleeping eyes, you should go to sleep before 11:00 pm. The impact of sleep 1, women “women’s beauty is to sleep out”, this sentence must have heard, sleep and beauty does have a close connection. We often see that some women who have passed the age of puzzlement, still lithe, rosy cheeks, moist skin, charm. And some only 30 years out of the young woman, but the dark face, dark circles under the eyes does not go away, skin wrinkled, depressed. Although the two nutritional status, working environment, family life are not similar, and skin appearance, health status is very different. An important reason for such a big difference is sleep. Usually, a woman who sleeps well looks radiant, while a woman who suffers from insomnia has a dull complexion, is in poor spirits, and even suffers from hormonal imbalance, leading to low immunity and endocrine disorders. Long-term insomnia not only affects women’s appearance, but also triggers other physical and psychological diseases. Lack of sleep easily leads to fatigue and lack of concentration, affecting work efficiency. Lack of sleep also makes people fat. A study done among 70,000 women found that those who slept 5-6 hours a day were on average 6-8 pounds heavier than those who slept 7-8 hours a day. When normal sleep hours are deprived, the body produces large amounts of anti-stress hormones to slow down the metabolism, along with an increased appetite the next day. This condition tends to desensitize the ability to feel hunger and fullness, contributing to weight gain and an increased risk of diabetes. A major trigger for insomnia: stress factors. Women are more emotionally delicate and face tremendous pressure from excessive concern from individuals, couples, and other family members during IVF-ET treatment. Therefore, it is necessary to adjust the mindset appropriately. Currently, among male infertility, poor semen liquefaction and high semen viscosity have become one of the most important factors leading to male infertility. Among these patients, most of them can be cured after targeted treatment. However, there are also a small number of patients who, despite carefully following the doctor’s instructions and trying to avoid all the bad habits that may cause the disease, the test result is still semen non-liquefaction. In fact, this is because they ignore the effect of sleep on semen. Why does sleep affect semen liquefaction? This is because the enzymes related to liquefaction mainly come from the glandular fluid secreted by the prostate and seminal vesicles, and the secretion of these glandular fluids is regulated by the body’s endocrine hormones, and the secretion of hormones has a close relationship with sleep. Insufficient sleep, especially too little sleep at night, will cause hormone secretion disorders, resulting in semen liquefaction dysfunction, affecting fertility. According to Chinese medicine, lack of sleep at night can make the body’s yin and yang qi and blood imbalance, yang qi labor outside, yin and blood can not be guarded internally, yin deficiency and internal heat, depletion of the body’s fluid, resulting in semen viscous, leading to semen liquefaction is not good. Because some patients do not pay attention to the impact of sleep on semen, often lead to recurring conditions, prolonging the healing time, thus giving themselves in the economic and mental unnecessary losses. Therefore, medical experts remind: men should care for their own health, pay attention to diet, maintain adequate sleep, so that their health and reproduction of future generations are good.