Zone 2 Training Guide: The Science of Aerobic Base Building, Heart Rate Zones, and How to Apply It
⚠️ Health & Fitness DisclaimerThis article is for general educational purposes only and does not replace professional medical advice. If you have any cardiovascular, metabolic, or respiratory condition, please consult a qualified healthcare professional before beginning any new exercise programme. Zone 2 training has gone from an elite endurance secret to a mainstream fitness obsession…