A Study of One:

The Longevity Manifesto

The free guide to what the longevity industry won't tell you, and a saner way to actually live longer and better. Co-authored by an industry insider and a gerontologist who advises the Stanford Center on Longevity.

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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 and Barbara Waxman. Derek is the CEO of Modern Elder Academy, a former supplements CEO, and a recovering biohacker who spent a decade selling the very things this guide tells you to skip. Barbara is a gerontologist and executive coach who advises the Stanford Center on Longevity and coined the concept of the Thirdspan. One diagnosed the problem from inside the industry. The other built the framework for what to do about it. Inside, you'll learn:

  • Why the interventions with the strongest evidence are the ones nobody can sell you
  • The four questions that cut through any longevity claim before you spend a dollar on it
  • The Thirdspan: the missing dimension of longevity that lifespan and healthspan leave out
  • The "Four B's," a framework for a practice that fits your life instead of someone else's protocol
  • Why roughly half of how long you live is genetic, and why that makes personalizing the rest matter more, not less
  • How to design your "Trophy Years" instead of just bracing for decline
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