Linking Blood Work With Behaviour Change
Podcast

Today I got to sit down with Aaron Chapple, a health and wellness coach at Modus, who helps men reclaim their physical strength and step into their God-given calling. He works with men facing obesity, diabetes, insulin resistance, hormone issues, and gut health challenges — equipping them to build stronger, more energetic, and more purposeful lives. With 15+ years of coaching experience and a background in teaching health and PE, he brings deep practical expertise with the heart of an educator and mentor.

As a powerlifter, he set an all-time world record in 2024 in the 220-pound class for the 40–44 age group and is ranked in the top 15 all-time across two weight classes and two age categories. In his most recent meet, he went 9-for-9 with a 644-pound squat, 463-pound bench, and 705-pound deadlift — just nine months after biceps repair surgery. He also coaches powerlifters who have broken national records and won world championships, focusing on movement quality, strong relationships, and individualized programming over rigid systems.

Outside the gym, he loves serving his family and local church, coaching high school swimming, officiating water polo, and chasing new strength goals as he aims to be the strongest, most athletic version of himself at 42.

This conversation with Aaron goes deep into something I think most men have stopped paying attention to: how they actually feel. Not how they think they should feel given their age, their workload, or their training history. How they actually feel under the hood.

Aaron works primarily with men in their 30s, 40s, and 50s, and what he's seeing on their lab work tells a story that standard medical panels keep missing. We get into the silent epidemic of insulin resistance, the TRT shortcut trap, the real trade-offs between health, performance, and aesthetics, and why most guys walking around feeling like garbage have no idea anything else is even on the table.

Key Quote

"If your check engine light is on, check what's going on under the hood." - Aaron Chapple

5 Core Themes

1. Insulin resistance is the silent epidemic standard medical panels miss. Fasted insulin doesn't get pulled on most labs, which means guys with technically "normal" A1C and glucose can be sitting on a ticking time bomb without anyone catching it.

2. The aesthetics, performance, and health triangle forces real trade-offs. You cannot maximize all three at once. Pursuing peak strength or peak leanness pulls you away from health, and the why behind your goal determines what you're willing to sacrifice.

3. Behaviour change works through stacked steps, not overhauls. Two to five items at a time. Master one phase before adding the next. The same way you'd cue a broken squat, you address nutrition and lifestyle.

4. Connection is the moat against AI in coaching. Anyone can pull a program off the internet now. What can't be replicated is the relationship, the brotherhood, the group that closes the gap of proximity between you and your clients.

5. Most men don't know how bad they feel because they've drifted away from good for a decade. A 2% decline every year for 15 years compounds into something you stop noticing. You just accept it as aging.

Take-Home Message

Stop accepting how you feel as a given. The downstream effects of poor sleep, untreated insulin resistance, missed thyroid dysfunction, and stress accumulate quietly for years before anything breaks. By the time most men ask for help, they've forgotten what good actually feels like. Looking under the hood is not about pulling every lever at once. It's about pulling the right one first, getting a win, and stacking from there.

Find Aaron

Website -https://movewithmodus.com/coaches/aaron-chapple

IG-@big_daddy_chap

Facebook -Aaron Chapple

X -Aaron Chapple

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