Train for Decades, Not Just Today

Free tools and evidence-based guides for Zone 2 cardio, sleep quality, strength training, and VO2 max — the four pillars of healthspan.

Free Tools

MAF Heart Rate Calculator
Your Zone 2 ceiling, 2 inputs Sleep Quality Score
4-factor sleep self-check 1RM & 5/3/1 Calculator
Working weights for next cycle VO2 Max Estimator
From a 12-min Cooper test

Get Ongoing Coaching on iPhone

Zone 2 Longevity CoachPersonalized Zone 2 plans

Aurnia: Sleep TrackerThe "why" behind your sleep

Repvy5/3/1 strength logger

Guides