According to statistics, about 15% of married couples are infertile, and about 49% of them have male causes. In the past 10 years, domestic and foreign reproductive scientists have been working to find the causes of male infertility. And recent research data shows that certain life fashions are to blame. 1, candlelight dinner candles, especially scented candles, will release lead, mercury and other harmful particles, preventing the testes from synthesizing androgens and sperm. 2, fast food Fast food contains a lot of soy products, long-term mass intake will show some estrogenic effects, thus inducing male reproductive problems. 3, do not like to drink water Although scientists have not fully understood how the lack of water actually affects the specific male reproductive health, but the facts show that love to drink water male reproductive capacity is stronger. 4, overeating American scientists in Atlanta found that when men overeat, the quality of their sperm will be damaged. 5, like to drink coffee coffee can also damage male sperm, so sperm inactive, so scientists recommend that men drink coffee in moderation. 6, like to eat seafood The ocean is polluted by industry, so the seafood contains too much of the chemical mercury harmful to reproduction. 7, smoking and drinking Studies have shown that the probability of infertility in men who smoke regularly is three times that of non-smoking men; patients with chronic alcoholism will experience testicular atrophy, leading to a decline in semen quality. 8, food packaging German reproductive scientists found that the global reduction in the number of male sperm may be related to a chemical called phthalates. It is commonly used in food packaging, vinyl flooring, wallpaper, cleaning agents, nail polish, hair sprays, soaps, shampoos, mineral water bottles and hundreds of other products. 9, soak oxygen bar Healthy people, especially men of childbearing age inhale more oxygen than physiologically necessary, will involve the testes as well as the metabolism of sperm cells. 10, sauna sperm must be at a constant temperature of 34 – 35 ℃ in order to develop normally, and the temperature in the sauna room is significantly higher than this standard. 11, often wear tight pants Jeans and other tight pants can cause testicular temperature to rise, limiting blood circulation in the scrotal area, bringing resistance to the generation and survival of sperm. 12, cosmetics Some men use women’s cosmetics at will when it comes to skin care. Some of these cosmetics developed specifically for women contain certain estrogens, which can damage male reproductive health with long-term use. 13, frequent use of cell phones Although this conclusion did not gain consensus, but an undeniable fact is that the long-term use of cell phones for men’s fertility is indeed lower than the non-use.