Not to be uncharitable but it is hilarious to see people who believe in “earthing” or “structured water” think they have any competence to judge the safety of cell phones. See:
theness.com/neurologicablog/index.php/earthing/
archive.randi.org/site/index.php/swift-blog/1652-magic-water.html
Do cell phones cause cancer? I don’t know, it certainly hasn’t been proven. I’m sure there are long-term health risks (as there are with everything). I suspect in a few years we’ll be seeing people with chronic neck pain from always looking down at their phones.
I doubt that people would quit using cell phones even if they came with a big skull and crossbones and a printed warning about cancer.
