HAVIT Blog
Guides fondés sur la science pour les habitudes, le sommeil, la nutrition et le mouvement.
Récents · 114 articles
Workout Frequency Per Muscle Group: Why Training Each Muscle 2x Weekly Beats the Classic Bro-Split
Training each muscle group twice per week produces 3.1% greater hypertrophy gains than once-weekly training, according to the latest meta-analyses.
Workout Split and Training Frequency for Natural Lifters: The 2026 Evidence-Based Guide
Natural lifters build more muscle training each muscle 2-3x weekly with upper/lower or push-pull-legs splits, not the classic bro split.
Zone 2 Cardio Heart Rate Calculator: Why the MAF Formula Gets Your Fat-Burning Zone Wrong
Generic Zone 2 formulas can be off by 15+ bpm; a simple talk test or DIY lactate estimation finds your real fat-burning sweet spot.
Zone 2 Cardio Heart Rate Fat Burning: Beyond MAF Formula for Your Perfect Training Zone
Your true fat-burning zone 2 heart rate likely differs from generic formulas by 10-20 BPM—here's how to find it precisely.
Dead Hang for Shoulder Health: The 60-Second Daily Habit That Decompresses Your Spine
Hanging for just 60 seconds daily can decompress your spine, improve shoulder mobility, and reduce chronic shoulder pain—when done with proper progression.
The Jump Protocol: How 10 Minutes of Hopping Can Build Stronger Bones Than an Hour at the Gym
Jumping 40-100 times daily at specific heights creates more bone density than traditional weight training—here's exactly how to do it safely.