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.
scientists found that fgf21 levels were elevated 15 minutes after exercise peaked around 60 minutes later and then returned to Baseline two hours after exercise this study found there was a rise in fgf21 after biking but not resistance training however a separate study published in 2019 found an increase from both aerobic exercise and resistance training
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.
exercise hormone or exine called fiberblast growth factor 21 or fgf21 during exercise fgf21 is released by our liver and muscles and it can cross the bloodb brain barrier and bind to receptors in the hypothalamus it plays a role in many of the beneficial responses to exercise like improved glucose uptake insulin sensitivity lower blood cholesterol levels and reductions in body weight