The evaluation of electromagnetic sensitivity of biological systems ha
s been considered as a subject of engineering science so far. Numerous
indications (reports, hints) of biolgical effects, which cannot be de
scribed anymore with the transformation of field-energy into Joule'-en
ergy, lead to the limits of considerations up to now. Obviously there
seem to be other patterns of value, where biophysical classifications
should be a special request of a medical physicist.