The thinking behind Green Man
A curious mind.
A healthier future.
Green Man Longevity is a place to explore what it means to live well for longer — through research, open discussion, and knowledge that everyone can access.

Rooted in science.
Open to possibility.
Longevity science moves quickly. Promising ideas deserve attention, but they also deserve careful questions: What was actually studied? Who might benefit? What remains unknown?
This library brings together selected research on rapamycin and mTOR, GLP-1 therapies, and brain health, alongside four books by Mark A. Smith. The goal is understanding, not certainty — and a clearer distinction between evidence and enthusiasm.
The Longevity Evidence Series takes these conversations further: The Longevity Operating System; mTOR, Metabolism, and Muscle; Outrunning Alzheimer’s; and The Metabolic Frontier. All four free editions are available now, without an account or paywall.
Read the free books