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May 13, 2025 70 mins

In this episode of Spartan Leadership Podcast, Aaron Williamson, The Rock's trainer, reveals the most important lesson he learned from training with The Rock. Tune in to hear about discipline, hard work, and the mindset of a US Marine.

🚨 Aaron is also a featured keynote speaker at our upcoming Bridge Builder Live event at Five Bridges Farm. Learn more here: https://www.joshkosnick.com/bridgebuilderlive

🔗 Aaron’s Website: https://www.aaronwilliamson.net
📸 Instagram: @aaronwilliamson

00:00:00 - Introduction
00:03:24 - Joining the Marines & Early Life
00:08:31 - Struggles After Service
00:11:26 - Finding Purpose in Fitness
00:13:41 - Breaking into Hollywood
00:23:59 - Zac Efron’s Transformation
00:31:08 - Intermittent Fasting & Nutrition
00:36:55 - Aging & Longevity
00:45:21 - Biohacking & Peptides
00:56:04 - Thoughts on TRT
01:03:20 - Fitness as a Life-Altering Belief
01:07:09 - Closing Remarks
________

📅 Book a Call with Josh: https://calendly.com/josh-kosnick/30min

🌐 Podcast Website: https://spartanleadershippodcast.com

🔗 Follow Josh Kosnick & Get Exclusive Content: https://linktr.ee/joshkosnick

💡 Learn More About Josh: https://www.joshkosnick.com

Spartan Valor Foundation is dedicated to empowering veterans, military families, and survivors of child trafficking. Through strategic partnerships, we provide critical resources, advocacy, and hope for those who have sacrificed so much. Join us in making a difference—because no hero should stand alone.

🔗 Learn more: spartanvalor.org

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