Bryan Johnson· Author
Every time you resist an impulse, it’s like a rep in the gym for your brain. This will strengthen the dorsolateral prefrontal cortex, the part of your brain responsible for discipline and delayed gratification.
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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.
Every time you resist an impulse, it’s like a rep in the gym for your brain. This will strengthen the dorsolateral prefrontal cortex, the part of your brain responsible for discipline and delayed gratification.
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