Daniel E. Lieberman

But it's also, you know, aerobic physical activity is really important for kind of your base core, your fitness. You know, some kind of mix is always kind of important. But there's no one prescription. There never will be.

There is no question about it. I mean, there are maybe a hundred studies by now, epidemiological studies, which show a dose-response curve to, for example, steps per day and various kinds of outcomes like cardiovascular disease or diabetes or just how long you live.

There is no question about it. I mean, there are maybe a hundred studies by now, epidemiological studies, which show a dose-response curve to, for example, steps per day and various kinds of outcomes like cardiovascular disease or diabetes or just how long you live.

There is no question about it. I mean, there are maybe a hundred studies by now, epidemiological studies, which show a dose-response curve to, for example, steps per day and various kinds of outcomes like cardiovascular disease or diabetes or just how long you live.

so for example let's take steps per day you know for most studies if you look at that curve the more steps you take the the better the outcome up until about seven or eight thousand steps a day and then the curve begins to start leveling off again these are big epidemiological studies there's a variation from person to person but sure there's no question that this physical activity has important benefits and and importantly we understand a lot of the mechanisms behind it right because when you're physically active you're

so for example let's take steps per day you know for most studies if you look at that curve the more steps you take the the better the outcome up until about seven or eight thousand steps a day and then the curve begins to start leveling off again these are big epidemiological studies there's a variation from person to person but sure there's no question that this physical activity has important benefits and and importantly we understand a lot of the mechanisms behind it right because when you're physically active you're

so for example let's take steps per day you know for most studies if you look at that curve the more steps you take the the better the outcome up until about seven or eight thousand steps a day and then the curve begins to start leveling off again these are big epidemiological studies there's a variation from person to person but sure there's no question that this physical activity has important benefits and and importantly we understand a lot of the mechanisms behind it right because when you're physically active you're

Your body produces antioxidants. Your body produces enzymes that repair proteins and repair your DNA. Your body produces all kinds of genes that work on your brain and your liver. I mean, every system of the body pretty much is affected, your immune system. People who exercise 150 minutes a week were shown in a study to be 2.5 times less likely to die of COVID.

Your body produces antioxidants. Your body produces enzymes that repair proteins and repair your DNA. Your body produces all kinds of genes that work on your brain and your liver. I mean, every system of the body pretty much is affected, your immune system. People who exercise 150 minutes a week were shown in a study to be 2.5 times less likely to die of COVID.

Your body produces antioxidants. Your body produces enzymes that repair proteins and repair your DNA. Your body produces all kinds of genes that work on your brain and your liver. I mean, every system of the body pretty much is affected, your immune system. People who exercise 150 minutes a week were shown in a study to be 2.5 times less likely to die of COVID.

This is before the vaccines were produced. So it affects every system of your body. And so, yeah, those folks who are out there walking are doing themselves a real benefit.

This is before the vaccines were produced. So it affects every system of your body. And so, yeah, those folks who are out there walking are doing themselves a real benefit.

This is before the vaccines were produced. So it affects every system of your body. And so, yeah, those folks who are out there walking are doing themselves a real benefit.

Well, for one, exercising on a treadmill is boring, in my opinion. I mean, I have a hard time. And I put people on treadmills for a living, right? I just find them...

Well, for one, exercising on a treadmill is boring, in my opinion. I mean, I have a hard time. And I put people on treadmills for a living, right? I just find them...

Well, for one, exercising on a treadmill is boring, in my opinion. I mean, I have a hard time. And I put people on treadmills for a living, right? I just find them...

um really hard to do but apart from that um there are if like if you just compare running on a treadmill versus running over ground um the treadmill is a little bit different because after all the ground is moving underneath you uh so it's actually pushing you in a slightly different way so a lot of people for example put the treadmill at a at a one percent incline to equal the to kind of compensate for the fact that the treadmill belt is moving

um really hard to do but apart from that um there are if like if you just compare running on a treadmill versus running over ground um the treadmill is a little bit different because after all the ground is moving underneath you uh so it's actually pushing you in a slightly different way so a lot of people for example put the treadmill at a at a one percent incline to equal the to kind of compensate for the fact that the treadmill belt is moving

um really hard to do but apart from that um there are if like if you just compare running on a treadmill versus running over ground um the treadmill is a little bit different because after all the ground is moving underneath you uh so it's actually pushing you in a slightly different way so a lot of people for example put the treadmill at a at a one percent incline to equal the to kind of compensate for the fact that the treadmill belt is moving

Of course, the other thing that's different about the treadmill is that every step is exactly the same. Whereas when you're in the real world, every time you land, your foot's at a slightly different angle. There are rocks and inclines and turns and all that sort of stuff. So I think treadmill running makes people much more susceptible to repetitive stress injuries.