Natural tobacco, like I smoke, has a lot more radiation than bananas[1]. In the form of Polonium-210, mostly absorbed from phosphate fertilizers. Turns out the content is actually higher in "organic" tobacco[2].

So as I light this cigarette, I'm going to reflect for the millionth time on why I should've gotten addicted to bananas instead. But all else being equal, either cancer is cured in the next 20 years or we're all dying in a nuclear war, so, smoke up. And eat your bananas.

[1] http://large.stanford.edu/courses/2019/ph241/lord1/ [2] https://www.straightdope.com/21343841/does-smoking-organical...