Dr. Will Bulsiewicz

and you go to the gym on January 1st, there's a very high probability that you're going to get sore. And for some people, it hurts a lot. You need ibuprofen. You need probably seven to 10 days of rest before you can go back. right? Would that be a barrier to you going to the gym? Does that make the gym something that you don't want to pursue?

and you go to the gym on January 1st, there's a very high probability that you're going to get sore. And for some people, it hurts a lot. You need ibuprofen. You need probably seven to 10 days of rest before you can go back. right? Would that be a barrier to you going to the gym? Does that make the gym something that you don't want to pursue?

and you go to the gym on January 1st, there's a very high probability that you're going to get sore. And for some people, it hurts a lot. You need ibuprofen. You need probably seven to 10 days of rest before you can go back. right? Would that be a barrier to you going to the gym? Does that make the gym something that you don't want to pursue?

Does that make it seem like the gym is incompatible with your life? No, of course not. You went too hard too fast. You got some soreness as a result of that. You recover from the soreness and then you work your way back into the gym, acknowledging that this time around, we just got to take it a little bit more easy. It's the exact same thing.

Does that make it seem like the gym is incompatible with your life? No, of course not. You went too hard too fast. You got some soreness as a result of that. You recover from the soreness and then you work your way back into the gym, acknowledging that this time around, we just got to take it a little bit more easy. It's the exact same thing.

Does that make it seem like the gym is incompatible with your life? No, of course not. You went too hard too fast. You got some soreness as a result of that. You recover from the soreness and then you work your way back into the gym, acknowledging that this time around, we just got to take it a little bit more easy. It's the exact same thing.

I mean, there's a number of things. There's an interesting, so I guess let's start with this. There's generational loss of diversity within the gut microbiome. And that's not our fault. That's basically the industrialization of our diet that's happened over the last 100 years. And there was an interesting study that is done by the Sonnenbergs.

I mean, there's a number of things. There's an interesting, so I guess let's start with this. There's generational loss of diversity within the gut microbiome. And that's not our fault. That's basically the industrialization of our diet that's happened over the last 100 years. And there was an interesting study that is done by the Sonnenbergs.

I mean, there's a number of things. There's an interesting, so I guess let's start with this. There's generational loss of diversity within the gut microbiome. And that's not our fault. That's basically the industrialization of our diet that's happened over the last 100 years. And there was an interesting study that is done by the Sonnenbergs.

So Justin and Erica Sonnenberg, who are microbiome scientists at Stanford. And they did this, of course, in a mouse because you can't do this in humans. It takes us too long to procreate. But they looked at multiple generations of mice and they deprived these mice of fiber in their diet.

So Justin and Erica Sonnenberg, who are microbiome scientists at Stanford. And they did this, of course, in a mouse because you can't do this in humans. It takes us too long to procreate. But they looked at multiple generations of mice and they deprived these mice of fiber in their diet.

So Justin and Erica Sonnenberg, who are microbiome scientists at Stanford. And they did this, of course, in a mouse because you can't do this in humans. It takes us too long to procreate. But they looked at multiple generations of mice and they deprived these mice of fiber in their diet.

And what they found is that, okay, so let's imagine that grandma has a thousand different species of microbes in her gut, right? But by the time grandma has mom, she's down to 700 species. So that's what mom gets. Mom gets 700 species. And then mom is still on a low fiber diet. And by the time she has her daughter, she's down to 400 species. So her daughter gets 400 species.

And what they found is that, okay, so let's imagine that grandma has a thousand different species of microbes in her gut, right? But by the time grandma has mom, she's down to 700 species. So that's what mom gets. Mom gets 700 species. And then mom is still on a low fiber diet. And by the time she has her daughter, she's down to 400 species. So her daughter gets 400 species.

And what they found is that, okay, so let's imagine that grandma has a thousand different species of microbes in her gut, right? But by the time grandma has mom, she's down to 700 species. So that's what mom gets. Mom gets 700 species. And then mom is still on a low fiber diet. And by the time she has her daughter, she's down to 400 species. So her daughter gets 400 species.

So basically like there's this impairment that took place. And what they found in the study was that if you reintroduce the fiber, you can get back some of it, but not all of it. So the concern that exists is that there's a generational loss that's taken place because we're not the first generation to be low on fiber in our diet. Our parents' generation was.

So basically like there's this impairment that took place. And what they found in the study was that if you reintroduce the fiber, you can get back some of it, but not all of it. So the concern that exists is that there's a generational loss that's taken place because we're not the first generation to be low on fiber in our diet. Our parents' generation was.

So basically like there's this impairment that took place. And what they found in the study was that if you reintroduce the fiber, you can get back some of it, but not all of it. So the concern that exists is that there's a generational loss that's taken place because we're not the first generation to be low on fiber in our diet. Our parents' generation was.

But the problem is that if it started with them and then it transfers on to us, we're sort of receiving the baton and then carrying that forward. Part of the problem is our diet. Like you and I, we grew up in the 80s and like ultra processed food was taking over. Right. Like I routinely grew up eating junk food, chips, drinking Kool-Aid, SpaghettiOs for lunch. SpaghettiOs.

But the problem is that if it started with them and then it transfers on to us, we're sort of receiving the baton and then carrying that forward. Part of the problem is our diet. Like you and I, we grew up in the 80s and like ultra processed food was taking over. Right. Like I routinely grew up eating junk food, chips, drinking Kool-Aid, SpaghettiOs for lunch. SpaghettiOs.