Cardio
Cardio for Longevity: The Case for Zone 2 Over HIIT
VO2 max predicts all-cause mortality better than almost any other trainable metric. Building it takes volume — not intensity you can't recover from.
Cardio
Cardio
HIIT Isn't Better Than Steady State for Most Lifters
HIIT burns more oxygen per minute than steady state — but it also eats into the recovery your lifts depend on. Use it sparingly.
Cardio
Zone 2 Cardio: How to Actually Do It Without Killing Your Lifts
Zone 2 work — 120-140 bpm for most trained 30 to 50 year-olds — improves recovery and health markers without touching your lifting capacity.