Who says it's harmful? The microwave transmitter in the microwave oven will produce a small amount of radiation, but the door glass of the microwave oven has been treated and there is a lead shield inside.

Moreover, the radiation dose is completely within the range of civil safety.

I work in nuclear instruments. I don't even think that the radiation in our working environment has any effect on me and my colleagues. Their baby is healthy, too.

Moreover, radiation is not necessarily bad, and the radiation of species evolution is also an inducement.

The food with the highest radiation dose is corn, which we all like very much. I just hope that eating corn can change my genes and make me smarter. Hehe, of course it's a joke.

When using the microwave oven, be careful not to stare directly, which can reduce radiation. Of course, most of the radiation of this civilian product is electromagnetic radiation. Eat more radiation-proof foods such as kelp. Take good care of it.

Everything is radioactive, but it is different in size.

You can have a look at Mr. Hou's Handbook of Nuclear Protection Knowledge when you are free.

I just uploaded our internal reading on radiation safety protection in Baidu Library. You should be able to see it by searching "internal reading materials on radiation safety protection".