Building muscle after 40: The science of getting stronger when recovery slows down
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Jan 26, 2026 · 10 min read
Gaining size and strength in your fourth decade is entirely possible, but the biological rules have changed. Here is the evidence-based roadmap to overriding your body’s aging mechanisms and building muscle after 40. “The biggest mistake men over 40 make is trying to train exactly like they did at 25. Your physiology has shifted from ...