Are there any side effects / bad reasons for microwaving food?

I'v not heard of any side effects. Go ahead n hv fun wit it.

not that I know of.

Bad effects like cancer if only u dont cover wateva u put there,heard it emits ray that can cause cancer 

I read that after eating microwaved food, haemoglobin levels decreases. The violent change that microwaving causes to the food molecules forms new life forms called radiolytic compounds. These are mutations that are unknown in the natural world. Ordinary cooking also causes the formation of some radiolytic compounds (which is no doubt one reason why it is better to eat plenty of raw food), but microwaving cooking causes a much greater number. This then causes deterioration in your blood and immune system.

Confusion!!! - Some say It is good to open your food in the Microwave to allow the radiation to emit outside in order to guide against cancer. Other say it is better to cover the food to avoid cancer. May God help us from the Scientist