We live in a world of rays (which are inherently present). Some pregnant women are so afraid of radiation that they put on radiation protection clothing as soon as they get pregnant, so does it work? Actually, radiation wear is not very useful, it is only a shielding effect, but it is not possible to block so rays. We generally believe that it is not very meaningful. Radiation from electrical appliances: photocopiers, large gas pedals, calculators, transmission towers, radioactive elements of research institutes, etc. are more radioactive. And television sets are smaller. Computers should generally not exceed 40-50 hours per week. Some scientists believe that the bad posture of staring at the computer is more harmful than that produced by the computer itself. ultrasound radiation is not very large, there is not much difference between a total of 3 and 10 times during pregnancy. Among the different ultrasounds, there are considerably more 4-dimensional and 3-dimensional ultrasounds than 2-dimensional ones. So if it is not necessary, there is no need for pregnant women to do 3-D, 4-D, general detoxification ultrasound is fine. See my other articles on ultrasound for details. Cell phone radiation is greater than the telephone. Traffic: Pregnant women should not ride motorcycles, it is more bumpy. Driving and riding a car is more dangerous than riding in a car. After 6 months of pregnancy by airplane, long-distance car, etc. is more dangerous.