Bio: Chris Duffin is a freakishly strong, crazy engineer, who likes testing the limits of physicality, intellect, and creativity.

Bio: Leading men over 50 to become Harder to Kill—lean, strong, resilient, and relevant. Building the pack I couldn't find. Let's go.

Bio: Peptide researcher | Wellness strategist | Community builder Focused on education.

Bio: Peptide Educator

Bio: 1970 Model with renewed quest for the best life has to offer - husband to Debby, dad to Stella. Enthusiastic traveler and adventure chaser.

Bio: Army veteran Josh Holyfield built and scaled 7-figure businesses, helping 40K+ men transform through fitness. Now, he helps coaches grow and scale.

Bio: I help athletes abolish pain so they can breakthrough performance plateaus.

Bio: Husband. Father. Retired Navy Sailor. Level 63.

Bio: I am 53, happily married with two children and many other bonus kids. I live in Eagan Mn and love training, traveling, family, work and many hobbies.

Bio: At 53 I’m developing antifragile me & we. Married 29 years, father of 4, family man & friend. If it’s outdoors, count me in!

Bio: Grand Rapids, MI

Bio: 68 year old pastor on his way to becoming harder to kill. I live in Minnesota, married, 3 kids and 5 grandkids