My dear sir,
As for vaping v. smoking, my health has improved vastly since I gave up smoking for vaping. I had serious health problems from smoking, including Peripheral Arterial Disease, (PAD). I could not walk more than 100 ft. without my legs painfully cramping up, I had terrible leg pains at night and could not sleep, and I was constantly coughing up disgusting gunk. I had poor lung function, little sense of taste or smell, and low energy.
I wanted off the cigarettes bad, and it was when I got my very first taste of vaping that I got free of them. Someone had given me a cheap e-cig from the local flea market, and I tried it. As vapes go it really sucked, but while it worked I didn't need to smoke. I got better and better equipment and was finally done with smoking. My health improved greatly. The symptoms of PAD have gone away, I breathe so much better now, and I feel so much better!
If you are going to listen to the anti-vaping bunch please do appreciate that they just plain hate vaping because to them it "looks" like smoking, and they hate smoking with a passion. Truth be told they pretty much hate seeing anyone enjoy anything and will go right after them to no end, because they are puritanical control-freaks in the first place. They are really not very happy people, and they don't want you being happy either. It's that that most offends them.
They are miserable in their own skin, and want you to share that with them.