You have an error repair mechanism in your cells. It's job is to repair your DNA everytime your DNA copies itself. Everytime a cell divides (makes new cells) it must copy it's DNA. A 90 year old human looks like shit because his cells are literally just a copy of a copy of a copy of a copy of a copy of.... You get the idea Errors make their way through even though you have an error repairer it's not 100% effective. Sometimes a very specific DNA error occurs which causes a cell to become a rogue cell that refuses to die (DNA tells cells when they are supposed to die). This cell not only refuses to die but it retains the ability to multiply. And all of it's descendant cells have the same error. They refuse to die and they continue to multiply. This creates a TUMOR inside your body. What cell originally turned into the tumor decided the "type" of cancer you have. Each cancer is unique. Now you are free to test scientifically if 5g creates cancer. Buy a 5g transmitter off Alibaba then gets some petri dishes of human cells, skin, liver, fatty tissue etc... Blast the petri dishes with 5g and see if any of them develop tumors.