Infertility has become one of the three major medical problems in the 21st century, and is another problem after cardiovascular and cerebrovascular diseases and tumors. Last year, it was reported that there were more than 40 million infertility patients in China, accounting for 12.5% of the population of reproductive age. And infertility factors, male infertility and accounted for a considerable proportion, about 40% is the male factor. In the end, what factors lead to the decline of male fertility? 1, social life pressure Modern society is highly competitive, people’s lives are overly stressful, the incidence of anxiety, depression and other psychiatric disorders are on the rise, men with low libido, sexual dysfunction increased, and reproductive capacity has also declined. The tension and pressure of social life will also make the male hormone level change, thus affecting the male fertility. 2, poor lifestyle The modern lifestyle of staying up late for a long time and reversing day and night makes men lose physical strength and libido due to long-term mental stress, plus the body is in overload and the body consumes too much energy, which can lead to poor sperm vitality. 3, environmental pollution Over the past half century, with the massive use of pesticides, insecticides, detergents, food additives, preservatives, catalytic agents, resulting in an increase in environmental estrogen. In the male reproductive system should be high in androgens, this time was added too much estrogen, seriously affecting the normal operation of the endocrine system. With a little lack of attention in daily life a man’s fertility will go down, but of course, with a little attention, a man’s fertility will go up. Today, let’s take a look at what prospective fathers can do to improve their fertility.