In this episode of the Ben Greenfield Fitness Podcast, what's wrong with the China study?

Also, is Greek yogurt healthier than regular yogurt?

What can you do about nervous system failure?

The best natural supplements to control pain?

What is EVO athlete?

And does marijuana increase exercise performance?

Welcome to the Ben GreenfieldBitness.com podcast.

We provide you with free exercise, nutrition, weight loss, triathlon, and wellness advice

from the top fitness experts in the nation.

So whether you're an Ironman triathlete or you're just trying to shed a few pounds,

get ready or non-run-of-the-mill cutting-edge content from BenGreenfieldBitness.com.

Okay, so on Sunday, I was doing a race in Hamilton, Ontario, a 30k road race.

As you do.

Yeah, because Ben Hamilton, you can't do a half marathon or a full marathon.

You have to do something in-between.

It's called around the bay.

And I was probably like four kilometers in just starting to settle into a nice rhythm

and running next to a couple of guys, probably around my age.

And they were chit-chatting away and I heard one in them say,

so I was listening to this podcast the other day.

And this guy was going on and on about heart rate variability.

And you can measure your stress levels and how you can figure out if you're

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