The Blog

Evidence-based articles on longevity science, aging biology, and health optimization.

The Sardinian Shepherds Trained on the Way Down

Everyone credits Sardinian longevity to walking steep hills. The overlooked half is the descent — eccentric loading, accumulated daily for sixty years. Here’s the mechanism, the honest caveats, and how to dose it.

Brook Cecilia · · Longevity

Aging Is a Disease. The Government Is Starting to Agree.

WHO gave aging two ICD-11 codes. An FDA panel just said testosterone shouldn't be Schedule III. Slowing aging by one year is worth $38 trillion. The regulatory frame is shifting.

Brook Cecilia · · Longevity Policy

If Peptides Were Actually Regulated, Which Ones Would Survive?

BPC-157, TB-500, GHK-Cu, thymosin alpha-1, epithalon, MOTS-c, CJC-1295, ipamorelin, SS-31, and more — every popular peptide ranked by evidence quality, safety profile, and what would survive real FDA scrutiny.

Brook Cecilia · · Science

Your Social Circle Is Your Frequency

The neuroscience of social contagion and why your five closest relationships shape your biology.

Brook Cecilia · · Mindset × Science