> Is that really true? Good question. There was a spectacular long-form article, I'm sure I read via HN, about 7 years ago, that included a delightfully lurid

> Is that really true? Good question. There was a spectacular long-form article, I'm sure I read via HN, about 7 years ago, that included a delightfully lurid dive into the chemical and biological effects of caffeine, on humans, over a period of a few weeks, and that fond but slightly hazy memory is where I'm getting that figure from. Regrettably I've not been able to find that particular article again. I did find this, however: https://betterhumans.pub/how-to-quit-caffeine-in-one-week-e041892698ec https://betterhumans.pub/how-to-quit-caffeine-in-one-week-e0... .. and in the Addictive Potential section they cite this: https://pubmed.ncbi.nlm.nih.gov/27762662/ https://pubmed.ncbi.nlm.nih.gov/27762662/ .. which, if I'm reading that precis right, blows it out to 4 weeks (but it sounds like they were testing the presence of the dependency / tolerance / baseline effect, not trying to determine minimum timeframe to achieve). The list of Similar Articles at the bottom of that second link suggests there's some body of research out there to back these styles of claims up. The considered wisdom, as far as I can intuit, is to use caffeine strategically rather than frequently, if you want to enjoy the advertised 'energy' and 'focus' benefits. Of course, if you just like the flavour or the ceremony, knock yourself out.