The scientific community’s rumblings about brain cancer and the new-to-us affliction “electro-sensitivity” are worth exploring, at the very least, so we tapped three experts in the field—Dr. David Carpenter, Ann Louise Gittleman, and Devra Davis—to help us understand the complicated and messy world of cell phone and WiFi safety. EMR and EMF ( electromagnetic radiation and electromagnetic fields) generated by cellphones is a part of our everyday and it is hard to remember when the last time our lives was free of electromagnetic radiation.