At present, there are more and more infertile young men and women. The decision to give birth to boys and girls is up to men, and now the question of "whether to give birth or not" also falls on men. One book said that the number of male sperm should be 160 million. Now the male fertility is reduced because the number of sperm is less than 160 million and the quality is low. Of course, there are many factors, such as chemicals, radiation, and environmental pollution. But did you know that small laptops are also one of the killers of the next generation?