efyuar t1_j5v9lwt wrote

How long is enough long to do proper research on the effects of a product use? I switched from normal cigarettes to vaping 7 years ago and I would like to participate in a meaningful research as to discover effects of vaping. I am so sick and tired of these kind of non-concerete researches and their vague findings, if you call this a finding at all. As many said in this post, any change in the environment where you breath air causes protein levels to change in lungs