The question you ask about micro-wave radiation is very interesting, but I'm afraid cannot be answered with any certainty
at present. These ovens do apparently have an effect on people wearing pace-makers for their hearts, but a relation to minimal
brain dysfunction has not been proven.
The radiation studies in Hiroshima and Nagasaki showed no damage to babies before birth, but a definite increase in leukemia
in babies already born.
You are correct that research into the effect of these waves is a "must". Research funds from The March of Dimes
are available whenever an acceptable plan of study is presented.