Hi, everyone, real quick before we get into today's episode. This podcast is a labor of love,

and I do it for free. I spend hours each week researching to create these episodes, all with

the goal of spreading science-based fitness information. And I want to continue releasing episodes

one to two times per week, but I need your help to grow it. So if you could do me a huge favor

and leave me a rating and review, if you haven't already, share it with a friend. I would also love

if you send a message to your favorite podcast hosts to recommend me as a guest.

And I can thank this audience for the podcast that I've been able to go on thus far. And going on other podcasts also helps me spread these messages further and wider.

All right, that's it.

Let's get into today's episode.

I'm Dr. Shannon Ritchie.

I'm a doctor of physical therapy, fitness trainer, and founder of Ethelop Fitness.

In the Dr. Shannon show, you'll learn applicable tools to improve your health based on science.

Welcome to the show.

Hi, everyone.

Welcome back.

So this is the second episode in our little series celebrating our 200th podcast episode.

So we've done a lot more than 200 episodes, but 200 Thursday episodes. And I did this for the 100th

episode and y'all loved them. So I wanted to take some of our most popular topics and episodes and combine them into some summary episodes.

And it feels like lately over the last year or so, Zone 2 cardio has been all the rage.

Some people thinking it's absolutely necessary, others thinking it shouldn't be a priority.

And it feels like I've done a few podcast episodes about

cardio and zone two cardio, and they've been really popular episodes and topics. So I wanted to

...