You hit it on the nail. Anytime someone tells me about something some “experts” found in a study, I ask them if they know who paid for the study.
There’s always “stages” of the study before it is finalized.
If at any stage it looks like the study is not concluding something favorable to the funding entity, the research is stopped.
Yep, I don’t think I ever heard of a study on the effects of smoking paid for by the tobacco companies that found any evidence of any significant health risks associated with smoking. On the other hand, those of us who have smoked in the past and gotten UNHOOKED from tobacco don’t need a study to tell us how much better off you are without tobacco.