​Last week I told you about HDR—Human Dynamic Range—and how your physiology needs more range than a deathcore vocalist hitting banshee highs one second and sewer-pipe low growls the next.

But here’s the uncomfortable truth:
Almost nobody has the range.

Yeah, sure, you can crank yourself up.
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Hit the smelling salts, blast Pantera, chug snort 2 scoops of old school DMAA pre-workou...

... That part’s easy.

But then what?

You’re left staring at the ceiling at 2am, nervous system fried, HRV tanked,, recovery stalled, and your soul feeling like you got run over by a semi hauling industrial-strength regret.

The real flex isn’t getting amped.
​
It’s slamming the brakes back to baseline—fast.

That’s HDR.

I hammered this point home in a recent talk I gave for Formula 1 Motorsports.
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Think about it: you’re strapped into a rocket on wheels, blasting around a circuit at 200mph, triple-header races stacked like dominos, and zero margin for error.
​
If you can’t upshift into absolute kill-mode AND downshift back to baseline between sessions, you’re done.
​
Wrecked.
​
Toast.

Game over.

And here’s the kicker: lifters, trainers, and everyday athletes are no different.

Maybe you’re not pulling G-forces in Monaco, but you’re still redlining your physiology—lifting heavy, hammering intervals, chasing PRs, juggling stress, and pretending sleep is optional.

Without HDR, your system shreds itself.

That’s why I built the Physiologic Flexibility Cert. It’s not another cookie-cutter training plan—it’s the blueprint for expanding your physiological range so you can:

• Flip the nervous system like a switchblade—up, down, sideways—on command.
• Expand your HDR so you can rage harder and recover faster than anyone around you.

It’s the physiology equivalent of learning how to play a mixing board in a metal show.

Volume isn’t enough—it’s the transitions, the chaos, the contrast that makes the crowd lose their damn minds.

>> Enrollment for the Phys Flex Cert starts Oct 13.

Much love and metabolic mayhem,

Dr Mike
PS - here is a bonus tip for down regulation post training - find a quiet spot, close your eyes, lay flat on the floor, arms out and do even 5 minutes of a long nasal exhale. Sounds crazy I know, but it helps get you back to baseline. Bonus tips if you have a sauna to do some relaxing breathe work post training.

_____________________

Mike T Nelson CISSN, CSCS, MSME, PhD
Associate Professor, Carrick Institute
Owner, Extreme Human Performance, LLC
Editorial Board Member, STRONG Fitness Mag

Mike T Nelson is a PhD and not a physician or registered dietitian. The contents of this email should not be taken as medical advice. It is not intended to diagnose, treat, cure, or prevent any health problem - nor is it intended to replace the advice of a physician. Always consult your physician or qualified health professional on any matters regarding your health.

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