The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
So if you run, as people do, and you do your 5k, then you're 10k, then you're half marathon, maybe a 10k is a half marathon. I don't know. But anyway, then you're doing your marathon. Then you're doing ultras that are 50 miles and 100 miles. I mean, eventually you're going to start doing damage, right?
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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.
eventually you're going to start doing damage, right? And eventually you look at every ultra runner and typically these are people who are very much on the dopamine pursuit system.