Peter Attia· MD
we can think of willpower as a muscle and like all muscles it gets stronger the more we practice using it but it also gets fatigued in the short term.
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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.
we can think of willpower as a muscle and like all muscles it gets stronger the more we practice using it but it also gets fatigued in the short term.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
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This is an inexact metaphor, but we can think of willpower as a muscle. And like all muscles, it gets stronger the more we practice using it. But it also gets fatigued in the short term.