The biological effects of electromagnetic fields on the structure of the human body are extremely complex, partly because of the number of factors involved (frequency, wavelength, intensity of radiation and duration of exposure, individual height, body shape, direction of radiation, type of tissue radiated, etc.); and partly because the human body is considered to be a coherent electrically charged system, rather than the chemical-mechanical model traditionally considered. The mechanism by which electromagnetic fields affect fertility and pregnancy is complex because the mother’s contact with it is more characteristic than that of the embryo or fetus. It is also because of differences in male and female anatomy, such that an EMF of a specific frequency may affect male sperm production, while an EMF of another frequency may affect the female gonadal axis. The relationship between humans and electromagnetic fields has been debated for many years. One view is that it is related to thermal effects, like heating food in a microwave oven, as a by-product of tissue heating; another view is that it is unrelated to thermal effects and is a biological response to non-thermal reactions. Although it is not clear how the electromagnetic effect is generated, the hypothesis of non-thermal effect is nowadays recognized. For various frequencies of radiation, the human body can absorb more or less part of it, but the most effective absorption is FM waves. This consumer product has increased significantly in the last decade. Further studies have shown that human organs and tissues absorb radiation differently, with the human eye, brain and testes being particularly sensitive. The water and mineral content of the body’s organs and tissues determines the strength of the response to electromagnetic fields. Thousands of studies have been conducted worldwide on electromagnetic fields, many of which are related to the effects on humans or animals. Studies have included controlled animal experiments, observations of relevant occupations, and epidemiological investigations. Decreased fertility and increased incidence of birth defects in infants, intracranial tumors, leukemia, and lymphoma have been reported in people living near high voltage lines or working in the electrical sector. The same has been reported for people working at radar equipment stations or law enforcement personnel with radar guns, and for people living near radio and television broadcast stations. some studies in the 1940s showed that people who operated radar on sea vessels had reduced sperm counts and an increased incidence of Down’s syndrome in their children. Two newer studies have shown that MRI operators and technicians in heat therapy, they also had an increased rate of miscarriage. Numerous animal studies have shown that offspring of animals exposed to electromagnetic fields of different frequencies, intensities, and durations will have varying degrees of reduced fertility, decreased intrauterine pregnancy rates, testicular atrophy, miscarriage, low birth weight, and birth defects. Changes in the immune system, changes in endocrine and neurotransmission in the brain, and loss of calcium ions from the cell surface were also found in these animals. Experiments also showed that melatonin and endocrine gland secretion were suppressed in these animals, and testosterone production was decreased in males. Most studies have been conducted on short duration exposure to high intensity EMFs, but animals exposed to low intensity EMFs have also been studied and observed for damaging effects. Two recent studies found damage to DNA from exposure to microwaves at frequencies similar to those of headphones. A series of studies from 1980 to 1990 confirmed that women who used electric blankets, electric hot water beds and rooms heated with resistance wire had approximately a 50% increase in miscarriage rates. The miscarriage rate was significantly higher in winter than in summer due to the increased heating. Studies have also shown that a certain segment of electromagnetic field frequencies are more damaging than other frequencies. Electromagnetic frequencies and microwave frequencies have been shown to be damaging to the human anatomy. When laboratory animals exposed to EMFs feel stressed and irritable, an increase in certain chemicals in their bodies can be observed. This stress response is sometimes present in some electromagnetic fields that are not felt, but changes in the chemicals can still be observed. It is known that the stress response can lead to endocrine disruption in both women and men, which can affect reproductive function. Some studies have also shown that certain low frequency electromagnetic waves can, initially, stimulate the immune system. If exposure continues, the immune system turns suppressed. Some unexplained infertility, or some infertility patients in which antibodies are present in both spouses, can eventually be traced back to a history of EMF exposure. The most prominent study today is that a decrease in hypothalamic melatonin can explain a proportion of infertility cases. And in the past it was mostly believed that EMFs affected fertility in two ways: by affecting the female gonadal axis, and by affecting male sperm production. The best advice is: if you want to get pregnant, you should carefully avoid and guard against the effects of electromagnetic fields, minimizing their impact on you as much as possible; do not use electric blankets; (unless you unplug them before going to bed, the current is always present in the cord, whether it is on or off.) Use less hair dryers, razors and headphones; distance between the computer screen should be kept at an arm’s length; change your work environment to avoid printers, copiers, fax machines, etc.. The same must also pay attention to the operation of your colleagues’ machines. Because the strongest electromagnetic field impact or from the back and side of the instrument. Watch TV at home, at least 8 feet away. Home appliances, such as induction cookers, microwave ovens, refrigerators, washing machines, etc., also have to adjust the position as far away from you as possible, because electromagnetic waves with the increase in distance, weakening very quickly, just 1 foot or 3 feet difference, but the intensity is significantly different. Cell phone Existing research shows that high-frequency microwave in addition to damage to human nerves, blood, immune system and eye, but also on human reproduction and embryonic development has an impact. Cell phone calls are transmitted through high-frequency electromagnetic waves to the electrical signal, the microwave radiation around the transmitting antenna (300MHz ~ 300GHz), from high to low for the antenna, the handset, keyboard and microphone, if the use of cell phones exceed the national microwave health standards, the human body will be harmful. The effect on the reproductive function of men is to significantly reduce the number of sperm, sperm vitality is not enough. Similarly, the endocrine function of women can also cause serious effects, so that the incidence of abnormal menstruation in women increased significantly. In the case of high-intensity microwave radiation can cause miscarriage, fetal malformation or stillbirth, and low-intensity microwaves can have certain adverse effects on several behaviors of the offspring after birth. Therefore, attention must be paid to reduce or avoid the impact of cell phone radiation microwave on fertility, the main attention should be paid to the following: First, it is best not to cell phones in the waist, in order to reduce or prevent microwave damage to human internal organs (such as ovaries, liver and other organs). Second, the use of reliable quality cell phone products, while preferably equipped with qualified cell phone electromagnetic wave protection cover for non-closed shielding, general anti-microwave efficiency of about 80%. Third, children, pregnant women, breastfeeding and menstruating women should not use cell phones. Fourth, reduce the use of cell phones, try not to use cell phones when there are ordinary phones around. Fifth, cell phone users should eat a diet rich in B vitamins, high-quality protein, phospholipids and other foods.