We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
And if you're somebody who doesn't drink caffeine, drinking caffeine before a workout is going to be about the worst thing that you could possibly do because it's going to increase core body temperature through its thermogenic effects and it's going to constrict your blood vessels and make it even harder to dump heat.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
However, if you're not a regular caffeine user and you're thinking, "Oh, I'm going to drink a cup of coffee "and get this huge performance enhancing effect." Well, that's not going to happen. Chances are it's going to lead to increases in body temperature and changes in the way that blood flow is happening in your body, and in particular on these palmer surfaces and in your face that is going to likely diminish performance.
If you do not regularly use caffeine, then you probably do not want to view caffeine as a performance enhancing tool.