While women can have beauty and hair, sauna bathing has become a fashionable choice for men. The stressful nature of modern life makes men relax completely in the sauna. However, frequent sauna bathing can kill sperm and lead to weak sperm. Currently, male infertility is increasing, and a big reason for this is related to poor sperm quality and less sperm. The high temperature environment can affect the quality and quantity of sperm. In a foreign study, male animals were placed in a high temperature environment at 38.5°C for 55 minutes and were subsequently found to have significantly reduced mating and fertility. If female animals were subjected to the same conditions, it resulted in abnormal motility cycles and increased fetal mortality. It is also known that this study confirmed that if a fever exceeds 38.5°C, the inhibitory effect on sperm can last for more than 6 months. The sperm in men need a lower environment, generally at 35.5~36.5℃ to develop normally, while the temperature in sauna rooms is as high as 60~70℃, the temperature of the scrotum area rises sharply, the testicles are subjected to prolonged fumigation, which can produce pathological damage and affect the function of the testicles, resulting in a decrease in the spermatogenic capacity of the testicles, a decrease in the number of sperm, a decrease in vitality, and even the death of sperm, which can easily occur Infertility is caused by sterility. In addition, in irregular saunas, it is easy to contract STDs and mycoplasma, chlamydia, bacterial prostatitis disease and cause infertility. In addition to saunas, driving can also affect the quality and quantity of sperm, which is due to the long time especially in summer sitting in a high temperature cab, the car cushion is soft, so that the buttocks into it, the scrotum including testicles are compressed, plus the foot to step on the gas pedal and clutch, is not conducive to the blood circulation and heat dissipation of the scrotum. In this environment of minimal change in body position, the scrotum is susceptible to excessive heat, which affects the spermatogenic function of the testicles. In addition, prolonged sedentary playing computer, also has an impact on male reproductive function. The actual “sperm” is first cooled down. Men who have not had children, especially those with poor testicular sperm function or those with other reproductive system diseases affecting their fertility, should not take saunas too often and for too long. Usually, when bathing, you should also try not to soak in water higher than 43°C for a long time. In addition to sauna bathing, some small habits of men in their daily lives can also unintentionally harm sperm. For example, wearing tight pants and jeans for a long time will cause too tight bondage to the scrotum and testicles, poor local heat dissipation, resulting in a higher scrotal temperature and reduced sperm vitality. The driver of a cab and a long-distance car should pay attention to adjusting the temperature in the car to avoid high ambient temperatures. The professionals who sit for a long time playing computer should pay attention to half an hour to get up and move around. Experts say that anytime you use a laptop computer on your lap, the heat emitted by the computer can cause a small high-temperature environment that raises the temperature of the scrotum, leading to a significant decrease in male fertility. In short, men should try to avoid damage to sperm in hot environments, and stay away and avoid the dangers of heat.