You seem to be frightened by cancer because in almost all your words, we find this word.
You must not have had cancer in your family or loved ones.
Of course it had to exist before we gave it a name but to say that the chemical filth and pollution have nothing to do with it ... the statistics prove it: cancers on the rise for 30 years despite relative progress to decline the fatal deadline.
and I'm not talking about diagnostic errors: a 50-year-old neighbor died of pancreatic cancer diagnosed very late. He worked in a boot factory, breathing lots of noxious products like he vomited when he got home from work.