Caffeine in coffee, an inconsistent “fix”
5 Replies
I have often wondered why, when buying coffee from the same establishment on different days, or the same size from different establishments- they do not have an equal effect on my subjective alertness. It probably has a lot to do with internal milieu- hormones, neurotransmitters and the like, but I came across another reason: the amount of caffeine in coffee can vary quite a bit, even when bought at the same place on different days. If fact it was pretty shocking to me, so I thought I would report Read more [...]