Y'know what else will heat up brain tissue? Aluminum foil when it is wrapped around your head. I suggest you take off your hat made of it... Also, how exactly is citing sources from a cancer prevention site shilling (note the spelling...) for tech companies? For the record, I have a phone that was worth $40 new and doesn't even have a fully working data plan. I don't give a crap about 5G or any high-speed mobile broadband, but I'm not about to get scared by myths perpetuated from the 1970s. EDIT: As for lead, it has only been recently discovered how harmful it (and other heavy metals) are to the brain. A lot of houses use lead paint. Ancient Rome used lead for plumbing (hence the atomic symbol of lead: Pb, for plumbum), as well as an artificial sweetener. Lead was used in fuel because of it's anti-knocking properties. At the time, there weren't a lot of better options. Of course the oil companies cared about profit, but lead didn't exactly make fuel more profitable to them, it was something customers wanted. That is, until everyone discovered it was toxic. Why do scaremongers think they can be trusted with a complete lack of data or a fundamental understanding of the subject at hand?