Guild of the Wild

Resilience Is Earned

Field Notes for people who want to gain the edge.

The Frontier of Human Possibility and the Science of Doing Difficult Things.
Field Tested. Truth Told. No Influencer Fluff.

Expect weekly Frontier Biology, Technology, Adventure Performance, Gadget Reports, and insider access on the Most Measured Driver Project

Written by Dr. David Heitmann DC, MS A clinician with decades of experience as a field researcher in human resilience.

Featured

Apr 28, 2026

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3 min read

You're Not as Resilient as You Think. Here's the Test.

Why most high performers have optimized themselves into a fragile corner and break down when something unexpected happens.

Dr. David Heitmann DC, MS

Apr 21, 2026

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3 min read

The desert broke me at mile 44. I took notes the whole way down.

Why Guild of the Wild exists, what's coming, and what you just joined.

Dr. David Heitmann DC, MS

Articles

Jul 8, 2026

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2 min read

"My stomach is eating itself."

The most measured man alive just found out his body doesn't care about his spreadsheet.

Dr. David Heitmann DC, MS

Jun 15, 2026

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4 min read

GLP-1s, Retatrutide, and the Thing Nobody Warns You About

Retatrutide will change everything about weight loss. The people who get that wrong will pay for it for decades.

Dr. David Heitmann DC, MS

Jun 8, 2026

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7 min read

Credit Cards Worth of Microplastics Debunked — Researchers Contaminated Samples With Gloves

The Microplastics Panic Is Built on Bad Science. That Doesn't Mean Plastic Is Fine. The influencers filling bags of plasma on camera, the credit card headlines, the brain tissue studies... here's what's actually happening and what I actually think you should do about it.

Dr. David Heitmann DC, MS

May 26, 2026

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7 min read

You're Solving the Wrong Problem with weight-loss

Metabolic software, triple-receptor sledgehammers, flow states at COTA, and why Japan's wellness spend is flat

Dr. David Heitmann DC, MS

May 25, 2026

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11 min read

Culture Is Metabolic Software

Japan's ultra-low obesity flat line isn't about discipline or genetics. It's about what happens when a culture survives industrialization with its biological architecture intact.

Dr. David Heitmann DC, MS

May 18, 2026

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6 min read

Movement still cheats death.

Longevity drugs, wearable AI, a racing driver chasing Le Mans, and why movement still beats everything.

Dr. David Heitmann DC, MS