Link not working, but no worries, no time to listen. I just find all this science on optimizing caffeine drug delivery kind of hilarious. I’ve seen the stuff on cortisol suggesting to wait an hour or two on waking. Not sure if that’s the same as the adenosine stuff. But I mean, it’s a drug. It’s interrupting naturally occurring cycles of cortisol no matter when you drink. It’s somehow more healthy to use coffee as a stop gap between cortisol cycles than as a multiplier during a cortisol cycle? I mean, come on.