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Quote by: Technosoul  All kinds of studies are useful.
The link you provided was a little bias because it spent most of it's page space promoting one one kind of "science" used for medical research |
I looked up the how's on medical research because smoking leads to medical problems for a lot of people.
Well what I saw is if they had a controlled study of 10 smokers, and 9 died before age 60 you might presume that the smoking had something to do with it, if 10 non-smokers were also tested and they lived past age 60, then not smoking probably led to the longer life span. Sure there might be one or two who had fantastic genes and they lived even after smoking, but still if 8 of them died before age 60 you'd assume most people will die early from smoking. But it's not like they did a couple studies here and there, they've done literally thousands of studies on this health issue. The conclusions are always the same. Smoking tobacco shortens the lifespan.