Physiology Friday Top 10 Posts of 2025

Zone 2 training, low-carb endurance, caffeine for fat burning, and more!

Greetings, and Happy Holidays!

I hope you’re having a fulfilling week and spending some quality time with friends and family (and some time alone too).

As the year comes to a close, I wanted to share the most popular posts from the Physiology Friday newsletter in 2025. Maybe you’ve already read one or more of them, maybe you missed one, or maybe you’re a …