Are microwave ovens harmful to humans?
No,but the safety interlocks can be defeated if tampered with and expose people to microwave radiation. There was a case of a ‘short order’ chef who partly ‘cooked ‘his abdomen when the door seals of an old catering model did not seal properly.This is a very rare case. It could be argued that mobile phones expose the head to much greater microwave radiation than an oven.