Guo Liang first listed such a set of data. At that time, frequent X-ray examination in medicine would increase the possibility of cancer. He said that the dose of X-rays taken by a human body at a time is equivalent to the amount taken by watching 1 hour TV; One dose of chest X-ray is equivalent to 0.5 times of 65438+X-ray photography; If you want to say harm, it is that a chest X-ray is equivalent to smoking three cigarettes.

If receiving medical X-rays is easy to cause cancer, aren't medical professionals who work around these devices and technologies all the year round the first victims? Judging from the "radiation measuring tube" they wear to work every day, the values are generally within the normal range. That is to say, the statement that "X-ray irradiation can cause cancer several times" is unfounded.

Doing CT once a week will not affect your health.

As we all know, X-rays have a certain destructive effect on biological cells. Excessive exposure to X-rays will affect physiological functions, cause chromosomal abnormalities and lead to cancer. But proper irradiation will not affect human health. Because the dose used by medical staff for X-ray fluoroscopy and photography is very small, only within the safe dose. In particular, occasional chest x-ray, gastrointestinal examination, bone X-ray or angiography will not cause adverse reactions. Moreover, the X dose used for filming is not completely absorbed by people, most of it penetrates the human body, and only a small part is absorbed by the human body. If we want to say a specific value, it is that the human body really absorbs only a few tenths or even less of the dose used.

X-rays cannot penetrate dense objects, such as metals and bones. ) Lead is a heavy metal, so you can't wear it. You can wear clothes made of lead.