ELECTROMAGNETIC-FIELDS AND BRAIN-TUMORS - A COMMENTARY

Brain tumours are of different cell types, the commonest being tumours of glia called gliomas. Many etiological factors of gliomas have been suggested and certain industries have been implicated. Several epidem iological studies have Linked electromagnetic fields (EMFs) to gliomas . Health effects of EMFs have been studied, both in humans and in expe rimental animals, mainly with negative findings. Positive experimental evidence linking EMFs to tumours is the effect of EMFs on melatonin p roduction by the pineal gland. Removal of the pineal gland in rats inc reases the incidence of tumours. Further epidemiological and experimen tal evidence is required to elucidate this possible link between EMFs and brain tumours. (C) 1994 Wiley-Liss, Inc.