I ask because I don't get any high or rush from coffee, that I notice. I would be interested in tracking signs looking for impact. But I mostly just like the taste.
For a subtle effect like this, I would argue that it's not actually possible to experiment on yourself in a meaningful way. If you don't use a double blind protocol, then any real effect is going to be completely overwhelmed by things like the placebo effect. And the absolute minimum number of people required to implement a double blind protocol is three: one to assign treatment and analyze the data, another to administer the treatment and collect the data, and one person to actually get experimented on.
For this particular experiment, I'd go a step further and say say that the absolute minimum is 4, because you want to make sure that both alternatives are being tested under conditions where it's the participant's first time performing the cognitive task you're using for evaluation. That's only possible if you have separate participants for the treatment and control.
I mean, I know basically how many beers will get me drunk and am well aware of the times I drink. Coffee, though? I read tons of folks saying it affects them... But it feels similar to the folks saying vitamin d improved their life. I am not claiming they are false, but I am claiming I don't feel it.
Which, that may not even be true. In which case, I don't mind. It was all by way of illustrating, be careful trying to extrapolate from a sample size of 1. In fact, just don't do it. Conversely, don't assume an aggregate statistic accurately describes anybody in particular.
And the point on being careful extrapolating makes sense. I will work on that.
Coffee is as strong as I can find. I prefer the taste of robusta beans. Have taken to steamed milk lately, but no sugar.
I'll check out the link you put in the other post. Thanks!
https://www.fda.gov/consumers/consumer-updates/grapefruit-ju...
Once I stopped drinking caffeinated soda my sleep quality improved massively. I was drinking it at least 8 hours before sleep, but apparently caffeine works close to 12 hours.
That makes it a lot easier to meter dosage for an experiment. You can also try to get consistent caffeine by using a consistent, fresh bean/roast, high quality burr grinder, and a brix meter to check extraction %.