Peter Attia· MD
That external reward moves to an internal reward where it's the it's the feeling of accomplishment and it's the runner's high, the euphoria that I'm getting that pushes that motivates my behavior.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
That external reward moves to an internal reward where it's the it's the feeling of accomplishment and it's the runner's high, the euphoria that I'm getting that pushes that motivates my behavior.
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But over time, as you mentioned, what's going to happen is your craving for that smoothie is going to go down as your brain begins to realize, oh, actually, when I run, I feel great afterwards. I feel endorphins. I feel dopamine. I feel these endocanaboids. Right? There's this kind of like there's this soup of good feeling in my head. your brain starts saying,"I don't actually need the smoothie. I don't crave crave the smoothie quite as much.
Now I mentioned though that this is at first and this is really important because as I mentioned before what happens with rewards is they almost always if a behavior becomes a habit they almost always move from exttrinsic to intrinsic.
As you mentioned, what's going to happen is your craving for that smoothie is going to go down as your brain begins to realize, oh, actually, when I run, I feel great afterwards.