A Study of One:

The Longevity Manifesto

A free 14-page guide on what the longevity industry won't tell you, and a better way to think about living longer and better.

As seen in:

Here’s what the longevity industry doesn’t want you to know:

Most of what actually extends your healthspan doesn't require buying anything.

Not the supplements. Not the tests. Not the $25,000 optimization packages.

The things with the strongest evidence (movement, sleep, purpose, real connection, stress you can manage) are free or nearly free. They're also harder to sell. So the market pushes products instead, hoping you'll mistake consumption for action.

Meanwhile, you're drowning in conflicting advice. Podcasts contradict each other. Studies get cherry-picked. And somewhere in the back of your mind, a quiet voice keeps asking: Is any of this actually for me?

That confusion isn't your fault. The landscape is genuinely chaotic.

A Study of One: The Longevity Manifesto is a filter.

Written by Derek Gehl (CEO of Modern Elder Academy, former health supplements CEO, and a recovering biohacker), A Study of One lays out:

  • What the longevity industry gets wrong, and what the science actually says
  • The "Four B's" framework for building a longevity practice that fits your life, not someone else's protocol
  • Why personalization isn't optional. It's the whole game.
  • How to become a "Study of One" and stop outsourcing your health to influencers and algorithms
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