If anyone wants to really know where cancer comes from or its causes, look to further than to the food industry where seeds are concerned and chemicals used on food, farms and in the Earth and fields, etc., plus a few viruses here and there that compromises the immune system.
Seeds are coated with chemicals to keep bugs off them. Chemicals are sprayed on ground, on plants, it gets in the air and we breathe it too.
The sad thing is natural alternatives are already here and available to home gardeners as well as commercial operations. We are all being poisoned as well as honey bees being killed by chemicals and as well as a few other things that are pests to bees.
If we all practice natural controls and organic ways to control pests, we would all be better off and save the environment. These companies that manufacture these things could still be profitable if they'd practice good natural bug controls and not use harsh dangerous chemicals that are dangerous to us all.
They insisted on using Roundup (weed killer) on corn and wheat to kill weeds. Well, the corn and wheat draw food/moisture from ground where Roundup is. It goes into stalks and into food we eat. This is idiotic nonsense to put it politely.
We all better wake up or even our poor kids will suffer even more from dangerous concerns, lung diseases, etc. It's sad when a company does not even care about children and all they dream about is a profit and money. In fact, I think it's really criminal as it is killing people. Call the state and federal offices and talk to your representatives!