Ben Greenfield | |
|---|---|
| Born | |
| Education | University of Idaho |
| Spouse | Jessa Greenfield (m. 2003) |
| Children | 2 |
| Website | bengreenfieldlife |
Ben Greenfield is a triathlete, personal trainer, nutritionist, author, public speaker, and former bodybuilder known for the practice of biohacking. [1] [2] [3] He has participated in 13 Ironman competitions and over 120 races, becoming a USA Triathlon top-ranked athlete in his age group for a period of time. [4] [5]
Greenfield was born in Lewiston, Idaho. [6] He was homeschooled, finishing his high school academics at the age of 15. As a child, Greenfield played the violin, was the president of a chess club, and enjoyed reading and writing fantasy fiction. He first became interested in sports and fitness after his parents built a tennis court behind their home. [4] [7]
Greenfield attended Lewis–Clark State College, where he played collegiate tennis. [6] He would go on to graduate from the University of Idaho, studying exercise physiology and biomechanics. He participated in an internship at Duke University with the Kansas City Chiefs of the National Football League. [4] [8] [ self-published source ]
Greenfield holds certifications in Sports Nutrition from the International Society of Sports Nutrition, Advanced Bicycle Fitting from Serotta, Strength and Conditioning, and Personal Training from the National Strength and Conditioning Association (NSCA). [4] In 2008, the NSCA recognized Greenfield as its Personal Trainer of the Year. [9] In addition to these certifications, Greenfield has served as the head endurance coach for the Endure to Cure Foundation. [10]
Greenfield began training for Spartan races in 2010, building several obstacles on the property where he lived at the time. He competed in a series of races leading up to, and including, the 2017 Reebok Spartan Race World Championship. [5] Greenfield participated in 46 total Spartan races, which took place from 2014 to 2019. [11]
He began heavily focusing on biohacking while taking part in the 2011 Hawaii Ironman Triathlon. In that same year. Greenfield released a downloadable fitness program designed to help athletes maximize their training for triathlons, called Triathlon Dominator. [1] He would go on to win the International Triathlon Union Long Distance Triathlon World Championships for Men 30-34, and became a top-ranked triathlete in his age group. [12]
Greenfield has appeared on the television shows Spartan: The Ultimate Team Challenge (NBC) and Steve Austin's Broken Skull Challenge . [5] He has also created and hosts the Boundless Life Podcast (formerly the Ben Greenfield Life Podcast), [13] which has featured guests like Twitter co-founder and chief executive officer, Jack Dorsey, among others. [14] Greenfield’s first podcast launched in 2007. [15] He also previously hosted the Get-Fit Guy podcast. [16]
In 2019, Greenfield presented a talk at TEDxCoeurdalene, titled "Bio Hacking or Ancient Ways of Living?". [17] [18] In that same year, he was a guest on The Joe Rogan Experience . [19]
In February 2020, Greenfield’s book, Boundless, appeared on the Publishers Weekly Adult Bestsellers list. [20] Another book of Greenfield’s, Beyond Training: Mastering Endurance, Health & Life, is a New York Times best seller. [2]
In June 2025, Greenfield was appointed as a strategic advisor to Gurner Group’s Saint Haven and SAINT private health clubs. As part of the partnership, he will develop anti-aging protocols for the group, evaluating nutrition, training, and other longevity modalities. [21]
Greenfield married his wife, Jessa, in 2003. They have two children. He is a practicing Christian. As a hobby, Greenfield writes and produces music. [4]
Greenfield participates in intermittent fasting and adheres to a Mediterranean diet. [3] He has previously experimented with stem cell injections as a treatment for various ailments, including improving sexual health. [22] He has also tried incorporating ice baths, infrared light therapy, and LSD-microdosing into his routines, performing numerous experiments on himself to advance his studies and practices in anti-aging. By the time Greenfield reached the chronological age of forty, his biological age was measured at nine. [23]
In the past, Greenfield supported the claim that vaccines could potentially cause autism, later stating that he and his children are vaccinated, but "we need to respectfully pay attention to potential adverse health effects." [14] [24] [25]
In 2023, Greenfield created a card game with his children, entitled Fart of War. [23]