VO₂ Max: The Number That Predicts How Long You'll Thrive
VO₂ max is the size of your aerobic engine — and among the strongest, most improvable predictors of...
Longevity & Supplement Guides
Evidence-scored guides to supplements, biomarkers, and daily protocols. Written the way we score our products: honestly.
Showing 39 guides tagged “Training”.
REHIT vs HIIT: Do Short Workouts Really Work?
HIIT is hard intervals repeated; REHIT is the minimal-dose version — two ~20-second all-out sprints in a ten-minute...
Zone 2 Training: The Quiet Engine of Longevity
Zone 2 is conversational-pace aerobic work — dull to watch, quietly foundational. What it is, why it tracks...
