I think a study should be done on the long term effects of vaping, particularly sub-o vaping on teens that never smoked
I wholeheartedly and vehemently disagree with this. Apparently we've been bombarded with that "long term studies" tactic so much that now vapers themselves start demanding them. In the absence of any evidence for harm nobody should have a need to see any long term studies. The demands for long term studies got carried over from smoking and applied to vaping because it looks similar, not because there's a real world suspicion founded in science that inhaling PG/VG vapor would be harmful.
We've had people subohming their balls/ladyparts off for nearly half a decade now (I'm losely tying it to the advent of "pinoy" style) and there's not a single medical case tied to the juice consumption. We've had people inhaling PG/VG for over a decade now and there's also not a single report of harm due to vapor.
Let me go through a few points to illustrate why such a study will never come to be and why even if it were it would be useless.
To even make such a study in a meaningful way would mean you need a big number of participants vaping for years to come. How are you going to get those?
What is subohming, is there a definition of vapor volume/time for it? What devices will be used, all of them?
How long do you want the study to be, 5 years? 10 years? 20 years? Numbers of participants will be thinned over time (plus they will stop to be teens soon after the start of that study), you can't force teens to vape for the study and it will become more and more meaningless the longer the study goes.
When concluded, will that study be enough? No! I can make up dozens more of potential "long term studies" that need to be done on the spot. What's with atomizers with an airflow of less than 6 miles/hour? What's with a long term study on strawberry+vanilla liquid? What if it's strawberry+melon instead? What about atomizers that have a mouthpiece more than 1.5cm from the coil? What's with all the different coil materials, do we need long term studies on each of those in each gauge and with each type of buld?
It is impossible to control all parameters in a long term study on vaping, there's far too many combinations to make one. The demands for long term studies will never end, no matter how many and what kind of studies are made. I strongly suggest we don't join that choir.
Are you a m2l vaper? If so, why are you concerned about d2l vaping in particular? If you're not, what reason do you have to be concerned?
I'm sick and tired of the vaper communities m2l vs d2l... let's call it "debate" to stay polite, it's counterproductive and divisive.
Every faction should have learned by now to be tolerant of the other, it's a useless debate that won't help anyone. There's different types of vaping that help different kinds of people to stay off of cigarettes, it's no one's business to judge or to think one style is the "true" style and the other isn't needed.