It's pretty obvious that it only applies to the same specie. If you live 100m from a highway, breath brake pad and tire particules all day, smoke 2 packs of cig

It's pretty obvious that it only applies to the same specie. If you live 100m from a highway, breath brake pad and tire particules all day, smoke 2 packs of cigs a day and drink 1L of vodka every morning you will statistically live a shorter life than your genetic twin who lives in an unpolluted rural area who eat pesticide free food and don't smoke/drink That's all there is to it, some people smoke and live long, some people don't smoke and die young, but statistically no one smokes a lot and live longer as a result. Just look at the leading causes of mortality, they're mostly behavior or environment related