Haze dust particles is usually we say PM2.5 particles, its main components are sulfur dioxide, oxy-nitride, hydrocarbon photochemical smog and aluminum cadmium manganese lead titanium vanadium and other heavy metal components. When the human body inhales these dust particles, it will have an impact on the normal metabolism, affecting the gas exchange, leading to the lack of oxygen in various organs of the body, and stress a large number of free radicals, these excess free radicals are more precipitated in the brain, heart, genitals and other organs that consume more oxygen. The genitourinary system is the fastest metabolizing tissue in humans, and when particles inhaled from outside enter the human blood circulation, the genitourinary system is the first to be affected. There are three major ways in which haze particles affect male fertility: 1. Excess free radicals disrupt the normal work of the hypothalamus (which manipulates hormone secretion), thus altering male androgen levels; 2. Excess free radicals deposited in the testes affect the replication of genetic material (cell membranes, DNA, mitochondria) during sperm division, leading to DNA segmentation misalignment, deletion or even mutation, leading directly to sperm These excess free radicals can also induce mature sperm to enter apoptosis at an accelerated rate. The growth cycle of male sperm, from generation, growth to discharge, takes 90 days. If you are in a hazy environment every day and are exposed to toxic substances, it will affect the normal development of sperm. Drink more water and eat more antioxidant fruits and vegetables. Tomatoes (containing lycopene), cauliflower (containing carrot sulfur), grape seeds (rich in anthocyanins, can be even grape juice to drink) and other antioxidant fruits and vegetables, can effectively fight against and eradicate free radicals.