Brad Kearns is a New York Times bestselling author, including his recent book Born to Walk. He's a #1 world-ranked Masters track & field high jumper in 2025 and a #3 world-ranked professional triathlete. He has written twenty books on diet, health, peak performance, and ancestral living, and is a popular speaker and podcast host, and creator of the Primal Fitness Expert Certification course.
In today's episode, he talks to Ashleigh about a very important but mostly missing piece in our fitness regimen: sprinting. He talks about the difference between a HIIT workout and a true sprint workout, as well as what happens in the body when we do an all-out sprint: how it can improve our body composition, overall fitness, agility, power, strength, and longevity.
Brad tells us how to do a sprint workout effectively and safely, how often you should be sprinting to maximize the benefits, why he believes Zone 1 training is actually underrated, and much more.
This episode is sponsored by Peluva, makers of five-toe, zero-drop, barefoot-style shoes. When you put on a pair of Peluvas, you are getting an automatic foot strengthening effect, a toe spacer effect, and a healing effect from the damage caused by regular shoes. Peluva has sufficient cushioning to use for all manner of everyday movement, fitness and athletic activities, and navigating hard modern surfaces. And they look (surprisingly) good, and are super comfortable.
Go ahead and use your specialized athletic shoes, work boots or even high heels when you need to, but the more you wear minimalist shoes when walking around and exercising safely, you can reawaken the natural functionality of the human foot to stand, walk, run, and perform. Visit https://checkout.peluva.com/
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