Hypoactivity of Wistar rats exposed to mobile phone on elevated plus maze.

Fol lowing the enormous increase in the use of wireless mobile telephony across the wor ld concerns on hea l th e f fec t s o f hand-he ld mobi le phone rad ia t ions have induced a l a rge body of research , bo th ep idemio log ica l and exper imenta l . Th is wi re less t echnology uses e lec t romagne t ic radiation in microwave range which may be harmful to human health. Parts of the radio waves from the phones are absorbed by the human head. One well understood effect of microwave rad ia t ion i s d ie lec t r i c hea t ing a l so known as e lec t ron ic hea t ing or h igh frequency heat ing , in which any d ie lec t r ic material (such as living tissue) is heated by rota t ions of charged molecules induced by the e lect romagnet ic f ie ld . In mobi le phone users, most of the heating effect will occur at the surface of the head causing increased tempera ture . Whether these low f requency puls ing s igna ls f rom mobi le phones have biological s ignif icance has been subject to deba te . In the p resen t p re l iminary s tudy , we tes ted whether mobi le phone exposure causes changes in behavior of Wis ta r ra t s on elevated plus maze (EPM).