Vaping. The scientific community are unanimous..

[The Bloop]

I'd like to say around 20 years, I have no sauce to back this up and my memory hasn't always been the greatest. Those big obnoxious vapes have definitely been around 10 or more years but I wanna say closer to 20..

I stopped smoking in 2010. I don't remember vaping being a thing then to help you quit. It was all patches and gum then. I'd say it was about 10 years ago they became more common.