A lecture presentation by Dr. Volker Schorpp.
Today I have absolutely no remaining doubt that weak technical electromagnetic fields (EMF) are able to cause harm to living organisms. In my understanding it is not (it dos not have to be) the weak energy of the EMF that causes damage directly. Instead, certain EMF-configurations are able to change the reaction coordinates of certain, often complex high energy reaction cascades between (quantum) states of biological molecules. This means that the Energy of the EMF acts not like the energy of a missile or a bullet that may cause direct destruction. The EMF interacts rather like a weak (varying) deformation of the ground of a pinball machine that may lead to a completely different result of the game (i.e. the ball may take completely different trajectories in the game).
Presentation can be seen here: