09/19/2025
🔬 The Science of Muscle Growth: Why It Matters in Your 40s & 50s 🔬
As we age we naturally lose muscle mass a process called sarcopenia.
The good news?
With the right training, nutrition, and recovery, you can slow it down (and even reverse it).
Here’s how: 👇👇
🧩 1. How Muscles Grow
When you strength train you create microscopic tears in your muscle fibers. Your body repairs these fibers through a process called muscle protein synthesis making them stronger and more resilient.
🍳 2. Protein is Essential
Protein provides the amino acids your body needs to repair and build muscle. Adults in their 40s and 50s often need more protein than younger adults to stimulate growth. Aim for protein at every meal to support recovery and strength.
😴 3. Rest is When Growth Happens
Exercise triggers the process but rest and sleep are where the results show up. During deep sleep your body releases growth hormone which is crucial for tissue repair and muscle development.
🏋️ 4. Why REPS Works for You
At REPS we specialize in guiding people in their 40s and 50s to train smart, fuel properly, and recover fully. Our programs are designed not just for fitness but for better mobility, stronger bones, faster metabolism, and long-term health.
✅ Build strength.
✅ Protect your health.
✅ Age with energy.
Your best years of strength and vitality can still be ahead of you. Let’s make it happen.