Zenon Sienkiewicz obtained his PhD from Queen Mary College, University of London, for research into the neurobiology of memory. Following postdoctoral work at the University of Oxford, he joined NRPB (now part of the Health Protection Agency) in 1985. His research interests include the neurophysiological and behavioural effects of magnetic fields and radiofrequency radiation. He has written a wide variety of scientific papers, reviews and articles on these topics. He is a consulting expert of ICNIRP and a member of a number of other groups and committees concerned with the effects of non-ionising radiation.