Americans think there is no such thing, so every household must have a microwave and oven. However, Russians think it is harmful, so they legislate to ban the production and sale of civilian microwave ovens in their country. I personally think that hot food is not harmful and is very convenient, but you should try to be careful and keep it 1.5 meters away from the microwave oven when it is working, because some radiation may leak when the microwave oven is working, and the radiation will disappear after it is shut down.