Dr. Jay Wiles

The biggest one is cardiorespiratory fitness.

So we actually know that when someone increases things like stroke volume, when they increase or lower blood pressure, and especially when they lower their heart rate, resting heart rate,

that this can indeed increase baseline heart rate variability.

I never say that HRV, because we should say what HRV is useful for and what it's not useful for, because this is not like a catch-all metric that can be used for everything.

I actually think it's best used in conjunction with other metrics.

So it's kind of like a piece of the puzzle as opposed to the full puzzle itself.

Yeah.

Cardiorespiratory fitness.

So as VF2 max increases, we know that resting heart rate decreases, stroke volume of the heart increases.

And so therefore we actually see heart rate variability improvements.

And this can be, and this can range.

It can range from pretty significant changes in baseline HRV to not much at all.

I don't like to set it as the goalpost.

So it's like, hey, I want to raise my HRV.

And so therefore I should go get better cardiorespiratory fitness.

I think we're thinking about it in the wrong way.

It's a bit ass backwards there.

I think it's, hey, let's increase cardiorespiratory fitness because we know it's great for health, wellness, and longevity and also great for mood and mental health.

And then the byproduct of that is that we'll see typically HRV increase.

The other one is chronic health conditions.