Brad Kearns is a New York Times bestselling author, world-ranked professional triathlete, and elite masters track & field sprinter and high jumper. After securing 31 victories worldwide on the professional triathlon circuit from 1986 to 1995, Brad Kearns went on to establish himself as a New York Times bestselling author and elite masters athlete. During his decade-long professional triathlon career, Kearns achieved two USA national championships in 1991: the Bud Light USTS Series/Coke Grand Prix Championship and the USA Triathlon National Sprint Championship. He earned a year-end #3 world ranking in 1991, a season marked by 15 first-place finishes and 33 top-5 placements in major international races.

Following his decorated athletic career, Kearns transitioned into publishing, authoring several books including _Breakthrough Triathlon Training_ (2005), _How Lance Does It_ (2006), and _How Tiger Does It_. Since 2008, Kearns has significantly expanded his literary impact through collaboration with Mark Sisson on the acclaimed Primal Blueprint series. As co-author, he contributed to _Primal Endurance_ (2016), _The Keto Reset Diet_ (2017), _Keto For Life_ (2020), and _Two Meals A Day_ (2021). Notably, _The Keto Reset Diet_ achieved significant commercial success, becoming a New York Times bestseller in October 2017.

Expanding his influence, Kearns founded and directed Running School, a children’s fitness program, and hosts the B.rad Podcast, an influential platform focusing on health, fitness, and peak performance.