Dr. Jay Wiles

Well, let me mention one more non-modifiable, because this is another one that I get to pick on females about.

Good.

We don't do enough of that on this podcast.

Right, exactly.

Another tall white guy coming to pick on females.

Men, so sex differences is the non-modifiable.

Again, another one that we can get in trouble about.

Sex differences.

The...

We know from literature, men typically have a higher average heart rate variability than women do.

And actually, six foot five guy here, taller guys typically have higher heart rate variabilities and actually lower resonant frequency rates of breathing.

I'm sure we're going to talk about resonant frequency rates as well.

And this is just a sex difference that we see.

And one of the main reasons is that women, as we know, go through a 28-day cycle.

And so because of this menstruation cycle or menstrual cycle that they go through, we actually know that different phases of their cycle can influence different hormonal expressions.

So mostly stark drops in things like progesterone and in estrogen, especially during like the late luteal phase.

can increase sympathetic drive and reduce heart rate variability pretty significantly.

So when you average that out across time, we see that women's, especially pre-menopausal women, their HRV tends to be quite lower than men's.

Okay, modifiable.

Yeah, modifiable.