The Forgotten Hormone: The REAL Driver of Muscle Growth (No One Talks About It)

Most lifters believe muscle growth is about testosterone, protein, or “eating more calories.”
But the science — and 40 years of real-world results — say something very different.
In this video, Dr. Nash Jocic reveals the forgotten hormone that actually drives muscle growth — and why most men over 40 stop responding to training, even when they train hard and eat “clean.”
This video explains:
• why insulin is the master anabolic hormone
• how insulin sensitivity controls muscle recovery
• why high cortisol destroys muscle as you age
• how GH, testosterone and nitric oxide only work when the environment is right
• how to structure food and training to build muscle at any age

If you’ve been training for years — but your body no longer changes —
this will show you the missing link.
📌 What You’ll Learn Inside
• Why modern fitness advice ignores hormones
• Why over-40 men lose muscle faster than they think
• How to create the perfect anabolic environment
• The exact food + training timing that restarts growth
• What to change TODAY to start gaining again

✅ Ready to take your training to the next level?
👉 Download my full training & nutrition eBooks
👉 Get a Custom Training or Meal Plan
👉 Book 1:1 Coaching or Online Personal Training
🌐 https://www.nashfittraining.com/categ...

Timestamps:
00:00 – The hormone that decides whether you build muscle or store fat
04:40 – The forgotten hormone: Insulin
05:10 – Insulin sensitivity — the master switch for body transformation
06:55 – Muscle hypertrophy explained as a 3-layer pyramid
09:10 – Three things that destroy insulin sensitivity as you age
13:00 – The insulin-based strategy for muscle building
16:30 – Why nitric oxide matters more than you think
18:40 – A quick insulin self-assessment test
22:40 – Final thoughts (your roadmap)

#muscleafter40 #bodybuildingafter40 #lowcarbdiet #musclegrowth