Peter Attia· MD
you know to turn walking into zone two it needs to be very brisk or up a hill
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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.
you know to turn walking into zone two it needs to be very brisk or up a hill
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Most people aren't really fit enough to run in zone 2 unless they're really really running slowly at which point it's just more efficient to walk uphill