Daniel E. Lieberman

Right, right. And well, it's also, it sells, right? I mean, comfort, I mean, who prefers to sit in economy as opposed to business class? Nobody, right? Comfort is nice, right? Who prefers shoes that are uncomfortable, right? We, you know, comfort's... Comfort, you know, we love comfort, right? But since when is comfort necessarily better for you, right?

Right, right. And well, it's also, it sells, right? I mean, comfort, I mean, who prefers to sit in economy as opposed to business class? Nobody, right? Comfort is nice, right? Who prefers shoes that are uncomfortable, right? We, you know, comfort's... Comfort, you know, we love comfort, right? But since when is comfort necessarily better for you, right?

I mean, are comfortable shoes actually better for you than going barefoot? Are comfortable chairs better for you than we're taking the lift better for you than taking the stairs?

I mean, are comfortable shoes actually better for you than going barefoot? Are comfortable chairs better for you than we're taking the lift better for you than taking the stairs?

Yes, because we often value the short-term benefit over the long-term cost, right? That's hyperbolic discounting is the technical term for that. But so we live in a world where we pay extra for comfort and we'll prefer it. But now we also live in a world where we have to now go out of our way to be physically active because it's no longer necessary.

Yes, because we often value the short-term benefit over the long-term cost, right? That's hyperbolic discounting is the technical term for that. But so we live in a world where we pay extra for comfort and we'll prefer it. But now we also live in a world where we have to now go out of our way to be physically active because it's no longer necessary.

And so again, I go back to my original statement, which is that people evolved to be physically active for two reasons and two reasons only. When it's necessary, rewarding. When we don't make it necessary, we need to figure out ways to make it rewarding. And that's hard. It's very hard.

And so again, I go back to my original statement, which is that people evolved to be physically active for two reasons and two reasons only. When it's necessary, rewarding. When we don't make it necessary, we need to figure out ways to make it rewarding. And that's hard. It's very hard.

We focus too much on weight. I think, you know, your health is what really matters. And there's so many other benefits of just being fit. And so even if you're not losing weight, you're still getting all kinds of wonderful benefits.

We focus too much on weight. I think, you know, your health is what really matters. And there's so many other benefits of just being fit. And so even if you're not losing weight, you're still getting all kinds of wonderful benefits.

We focus too much on weight. I think, you know, your health is what really matters. And there's so many other benefits of just being fit. And so even if you're not losing weight, you're still getting all kinds of wonderful benefits.

Well, that's a good question. And to understand the answer to that, it's important to make a distinction between physical activity, which is moving, right? Doing anything, right? You know, sweeping the floor, buying groceries, you name it. And exercise, excuse me, which is a discretionary, voluntary physical activity for the sake of health and fitness. And we evolved to be physically active

Well, that's a good question. And to understand the answer to that, it's important to make a distinction between physical activity, which is moving, right? Doing anything, right? You know, sweeping the floor, buying groceries, you name it. And exercise, excuse me, which is a discretionary, voluntary physical activity for the sake of health and fitness. And we evolved to be physically active

Well, that's a good question. And to understand the answer to that, it's important to make a distinction between physical activity, which is moving, right? Doing anything, right? You know, sweeping the floor, buying groceries, you name it. And exercise, excuse me, which is a discretionary, voluntary physical activity for the sake of health and fitness. And we evolved to be physically active

But we didn't evolve to exercise. And the reason for that is that until recently, people had to be very physically active, but they're also energy limited. And when you're energy limited, doing unnecessary discretionary physical activity is crazy, right? Like, so for example, I ran five miles this morning, which cost me about 500 calories.

But we didn't evolve to exercise. And the reason for that is that until recently, people had to be very physically active, but they're also energy limited. And when you're energy limited, doing unnecessary discretionary physical activity is crazy, right? Like, so for example, I ran five miles this morning, which cost me about 500 calories.

But we didn't evolve to exercise. And the reason for that is that until recently, people had to be very physically active, but they're also energy limited. And when you're energy limited, doing unnecessary discretionary physical activity is crazy, right? Like, so for example, I ran five miles this morning, which cost me about 500 calories.

You know, when you're struggling to get enough calories, wasting 500 calories on a completely useless run in the morning is a really terrible idea. And so it's an instinct to avoid unnecessary physical activity, which is exactly what exercise is.

You know, when you're struggling to get enough calories, wasting 500 calories on a completely useless run in the morning is a really terrible idea. And so it's an instinct to avoid unnecessary physical activity, which is exactly what exercise is.

You know, when you're struggling to get enough calories, wasting 500 calories on a completely useless run in the morning is a really terrible idea. And so it's an instinct to avoid unnecessary physical activity, which is exactly what exercise is.