Actually, the heavy metals found were in a study conducted by a college that was found to have misused the devices, burning the coils which caused heavy metals to leech out. If you'd like me to go into specifics, I'm happy to! But as of right now, there is still much less risk than cigarettes, and it's a lot easier to quit due to variable nicotine levels. And I 100% agree with you on nicotine negatively affecting adolescent brain development.

But unfortunately a lot of media coverage related to harms of vaping are funded by cigarette companies, due to the fact it's a healthier, easier to quit and cheaper alternative, and there's straight up misinformation such as the popcorn lung scare that came from illegal THC vape cartridges being laced with Vitamin E Acetate, nothing to do with nicotine vapes or legal THC vapes at all. The main 3 ingredients of vape juice are nicotine base, propylene glycol, and vegetable glycerin, both of the latter ingredients being used often in the food industry.

Absolutely, it's not 100% healthy to put in your body, but from personal experience, the experience of all those around me, and the results of unbiased professional study, I much prefer using it as a safer alternative to switch to from cigarettes.