I’ve heard cancer cases are increasing among younger people because of how they carry their cell phones. Girls stuff them in their bras and get breast cancer, or people carry them in their back pockets, which is close to, well, you know.
I'm reminded of the radium patches used on ships during WW2 to mark hatches and other openings so that they could be seen during 'lights-out' operations. Many men made belt buckles and etc out of them and got cancer.