Xiao Zhang and Xiao Li have been married for several years and are finally pregnant recently. She is happy and careful at the same time, for fear that if something goes wrong, the baby will disappear.
One day after dinner, she saw such a message in her circle of friends:
Xiao Zhang immediately discussed with Xiao Li with a grain of salt: [Do you want to isolate all these “radiating” household appliances? ]
Xiao Li is a radiologist who deals with radiation every day. He smiled when he looked at the content carefully: “madam, don’t be afraid, listen to me slowly.”
Radiation is also divided into good and bad.
Xiao Li: [Radiation is a physical term, which is generally divided into ionizing radiation and non-ionizing radiation according to its energy level and the ability to ionize substances.]
Xiao Zhang: [Hello, please speak to others…]
Xiao Li: [Simply put, there are two kinds of radiation. The one with large energy and strong power is called ionizing radiation, while the one with small energy and weak power is called non-ionizing radiation.]
Xiao Zhang: [Understood, one is big and the other is small. Is the power what? Is it lethal to people? ]
Xiao Li: [That’s right, this power is the ability to ionize matter mentioned earlier.]
Xiao Zhang: [Ionization… I don’t understand again.]
Xiao Li: [Ionization is a process in which atoms and molecules become ions under certain conditions. Imagine ionization as a harmful change. Powerful radiation has ionization ability. If cells in human body are ionized, they will be harmed and cause health problems. However, weak radiation, without ionization ability, generally does not cause harm to people.]
Xiao Zhang: [Then I know, it is actually wrong to say that radiation is harmful at ordinary times. It turns out that ionizing radiation is bad radiation and non-ionizing radiation is good radiation.]
Xiao Li: [I can say that, but good and bad mainly depend on the use. As long as we make reasonable use of it, bad people can become good people.]
Xiao Zhang: [Oh, I see, that is to say, ionizing radiation can hurt people, while non-ionizing radiation generally does not hurt people, is that right? ]
Xiao Li: [That’s right.]
Is there any harm to household appliances?
Xiao Zhang: [Having said so much, tell me something useful. Is there ionizing radiation in household appliances? ]
Xiao Li: [I was about to talk about this problem. In fact, in our daily life, the radiation we can come into contact with is relatively safe. The products that we misunderstand most, such as mobile phones, computers, wireless routers (Wi-Fi), televisions, microwave ovens and induction cookers, do produce radiation at work, but they are all non-ionizing radiation and very weak in power.]
Xiao Zhang: [Are they all the same? ]
Xiao Li: [Well, the principles of their specific applications are somewhat different, but the common point is that they generate electromagnetic fields, so there is certain radiation. However, as I said before, they are all non-ionizing radiation.]
Xiao Zhang: [So they are all harmless? ]
Xiao Li: [Yes, as long as it is a qualified product, it must conform to the relevant national regulations, and of course it is safe.]
Xiao Zhang: [Are you sure they won’t affect children? ]
Xiao Li: [It will not affect children, such as mobile phones. Many scientists have done follow-up research for decades, but they have not found clear evidence that it is harmful, so at present, it seems that it is safe.]
Xiao Zhang: [OK, then I’m relieved.]
How distinguishes between good and bad?
Xiao Zhang: [Apart from these safe ones, are there any unsafe ones? ]
Xiao Li: [When you say unsafe, do you mean ionizing radiation? The most common ionizing radiation that we can come into contact with in our life is medical X-rays, such as X-ray radiographers and CT equipment that I come into contact with at work.]
Xiao Zhang: [Ah, then you are not very dangerous? I didn’t know before! ]
Xiao Li: [Don’t be afraid, the radiation emitted by these devices is strictly controlled, and the examination or treatment is completed with the premise of minimal injury as far as possible, and our medical personnel will do a good job of relevant protection, so both doctors and patients are relatively safe.]
Xiao Zhang: [So, there is no need to worry at all? ]
Xiao Li: [No, for pregnant women, there is no need to worry about the vast majority of things in daily life, but besides hospitals, some factories or equipment may also have ionizing radiation, so don’t approach without protection.]
Xiao Zhang: [How do I know which cannot be approached? ]
Xiao Li: [Simple, remember this sign, be careful if you see it.]
Xiao Zhang: [So it is.]
Xiao Li: [Madam is wise. It is not easy to get pregnant and have children, but we don’t need to be alarmed, do we? ]
After listening to Xiao Li’s explanation, Xiao Zhang stopped worrying.