The article

So I took a chance and used it on my personal vaporizer. I checked my resting heartbeat at the beginning of the hour and checked it again after an hour of vaping the caffeine infused E-Juice. No difference. So great I’m not going need hospitalization which, of course, is fantastic news. As far as how I felt, I really felt no difference at all. I didn’t get the sudden jolt of energy when I normally have an energy drink or a cup of coffee. So I decided to continue using it for the rest of the day just to see if it took longer for the caffeine to kick in for some reason.

I can't add anything to this fine piece, so I'll leave it for readers to examine. I'll just close with the final paragraph of Newman's piece, which summarizes the situation incisively:

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