In Arabic country's why are they drinking yerba mate when i read its causes cancer in lungs?

I read an acticle on yerba mate that it can give you lung cancer , throat and brain cancer as yerba mate has a very large amount of caffeine and toxins that disrupt the body emune system allowing the body to die .Yerba mate keeps the body awake for too long and can cause brain damage as well i read in the article .They supply it to iran ,iraq ,libya and other arabic countrys .It comes from a woody tree in the south america's and there is 4 or 5 different labelled yerba mate product s on the shelves in you drink to much in can keep you awake for days.Choose your natural products carefully as research even saves lives in the plant world.

In Arabic country's why are they drinking yerba mate when i read its causes cancer in lungs?
look at people smoking, that's done all over the world. we know damn well it will kill us but we do it anyway. it's just something people do.





Do people in Arabic countries know that drinking yerba mate is potentially dangerous? If no, then something should be done, obviously.