[p0wn]

As far as I know it's fairly hard to synthesize, and isn't produced in large quantities yet.

[delbel]

Smoking cigarettes would do it. Nicotine + Oxygen right? Who knew the movie Sleeper had it right, keto diet and tabacco. https://www.youtube.com/watch?v=D2fYguIX17Q

[klipt]

Smoking certainly reduces your chance of dying of old age. Mostly by increasing your chance of dying of lung cancer.

[jackhack]

Perhaps an argument for "vaping," then? (Nicotine without the smoke and tar and other nasty compounds in tobacco.)

I never thought I would say that.