New to me....
Last two days, after a few weeks off caffeine completely, I tried something I thought would have no affect, but actually, to my surprise, does.
I drink espressos, and have found a decaf bean I really like. But yeah, without the caffeine, the buzz is missing. (Yes, I know decaff still contains a small amount of caffeine, but still none of the euphoria).
What I did yesterday, more just to use up some of the old caffeinated grounds, was sprinkle less than a quarter of a teaspoon of caffeinated grounds on top of the decaffeinated grounds, in the portafilter (I think that's the name of the thing). It had a disproportionate affect....I got the buzz! Did the same thing today and same result.
As far as I can gather, according to Chatgpt, the "buzz" is not linear and it's the initial, for me, small amount of caffeine that delivers it.
The amount is so small that it doesn't seem, so far anyway, to affect my sleep or give me any of the nervous symptoms associated with caffeine.
I haven't read of anyone else doing this, so I'm feeling a bit like Louis Pasteur or Marie Curie at this point. It might be placebo, but I don't think so.