Dr. Jason Fung (@drjasonfung) is a Toronto based kidney specialist. He's the author of The Obesity Code.

Shawn Stevenson is the author of Sleep Smarter: 21 Essential Strategies to Sleep Your Way to A Better Body, Better Health, and Bigger Success. He hosts The Model Health Show.

Rich Roll is back with a jam backed episode all about hormone optimization.

Dr. Rhonda Patrick returns with another nutrient dense discussion with Joe on cryotherapy/cold showers, diet, and exercise. As always this is not to be missed and we've noted all the most important parts for you, as it can be overwhelming in detail.