Measurement & Habits

What is worth tracking, what is noise, and how to build habits that survive real life.

Guides

Evidence: Established

The Sonic Vitality Guide to Healthy-Aging Foundations

Before supplements, devices, or protocols: the six foundations with the strongest evidence for aging well.

Published Jul 12, 2026

Evidence: Established

How to Read a Longevity Headline Without Getting Fooled

A ten-minute skill that will save you thousands of dollars and years of chasing noise.

Published Jul 12, 2026

What remains uncertain Every topic on this site has open questions — that's how science works. Individual guides call out specific uncertainties, and our methodology explains how we grade what we publish.