Radiation is very harmful to the human body, as the most common reason for ordinary people to be exposed to radiation, generally through medical examination and treatment and exposure to radiation, such as chest X-ray, chest X-ray, CT, radiotherapy, etc. Radiation can affect the human body's circulatory system, immune, reproductive and metabolic functions, and serious cancer can be induced; radiation also affects the human body's cardiovascular system, heart palpitations, insomnia, some female menstrual disorders, bradycardia, decreased heart beat volume, and the human body's cardiovascular system. Radiation also affects the human cardiovascular system, palpitations, insomnia, some women's menstrual disorders, bradycardia, decreased heartbeat, lower white blood cells, decreased immune function, etc.; it also affects the human visual system, such as vision, cataracts and so on.