I’m currently trying it out on a loose alternating-day basis; if it seems to be working, I may upgrade to blinding & randomization.
EDIT: it does correlate with earlier wake up, so I’ve upgraded to randomization; the blinding didn’t work out because the caffeine pills have too detectible a flavor.
Does that work for you?
I tried it only a few times and didn’t notice any clear effects. So as far as I can tell, no, it doesn’t work for me.
Have you tested this intervention on yourself more systematically?
I’m currently trying it out on a loose alternating-day basis; if it seems to be working, I may upgrade to blinding & randomization.
EDIT: it does correlate with earlier wake up, so I’ve upgraded to randomization; the blinding didn’t work out because the caffeine pills have too detectible a flavor.