Are those indicators independently of a high VO2 max or somebody with a higher running economy, let's say, or a larger physical heart, are they predisposed to a higher VO2 max metric?

Yeah, let's talk about what makes VO2max and what makes a high VO2max.

So if we think about what VO2max is, it's effectively your ability to consume oxygen.

And that means that oxygen has to go through a cascade of the lungs, into the bloodstream, through the heart, delivered to the legs.

And so let's say right off the bat, you have bigger lungs, a lot of blood, a big heart, and a lot of muscle mass to consume it.

I don't know, like a large rower.

Their absolute VO2 max is going to be higher relative to a small individual, like a small marathoner who is little lungs, heart, and smaller legs.

Are there ways that we can improve that number? Or is it kind of something that you're stuck with what you got? You've got to play the hand that you're dealt.