Food pollution, increased stress in life and the trend of late marriage and childbearing are all contributing to the rapid decline in semen quality in men. “There are also some that affect semen quality because of the occupation they are engaged in, such as the renovation industry and the radiology department in hospitals. In addition, unhealthy lifestyle is also one of the killers of declining sperm count in men, such as long-term smoking and alcoholism.” In addition to those obvious reasons, there are some often overlooked details in life that actually have a profound effect on men’s sperm. Long-term cell phone use. The high-frequency microwaves emitted by cell phones have a very obvious effect on men’s reproductive function, which can lead to a large reduction in sperm count and a serious lack of sperm vitality. American scientists once tested in Mumbai, India, and found that men who used cell phones for the longest period of time (more than 4 hours a day) had the lowest sperm counts, with only 50 million sperms per milliliter of semen, and the sperm quality was very poor, with some of them even having less than 20 million sperms per milliliter. Car exhaust exposure. Researchers at the University of Naples in Italy surveyed 85 men working at highway toll booths and found that their sperm counts did not differ from other young and middle-aged men in the same area, but sperm viability was diminished, and thus their fertility declined accordingly. Bathing water temperature is too high (sauna). In general, sperms in the testicles must be in an environment of about 35℃ to develop normally, and they will die if the temperature is too high. When people take a bath, the water temperature is often higher than this temperature, especially sauna bath, more unfavorable to the growth and development of spermatozoa, and may even cause death of spermatozoa, causing sterility. “Electronic fog” harm. In recent years, scientists have found that a variety of electronic equipment, including air conditioners, electronic computers, refrigerators, color televisions, laser photolithography and electric blankets, etc., in the use of the process are likely to produce a large number of different wavelengths and frequencies of electromagnetic waves – “electronic fog”. This kind of electronic fog filled in the space, is an invisible, can not touch, can not smell things, easy to cause physiological disorders in the human body, resulting in serious abnormalities in the testicles spermatogenic cells. In addition to these reasons mentioned above, long-term wearing of tight jeans and chemical fiber underwear, riding mountain bikes for a long time, the use of perfume and beauty products and other lifestyle habits may cause damage to male spermatozoa. It is especially worth mentioning that nowadays many young people like to operate their laptops on their legs, which is very easy to raise the temperature of the testicles and has a bad effect on sperm. Some experts also point out that driving continuously for more than 2 hours is also enough to make the sperm count of men decline.