FitBodyScience[Part 1 of 3]
Not everyone gains muscle the same way — new data shows why your gains (or lack thereof) aren’t about effort, genetics, or hormones.
This edition reveals what actually drives hypertrophy.
[Part 2 of 3]
Training volume — not load or intensity — is the primary driver of muscle growth across all populations. People who increase weekly set count see consistent gains, regardless of how heavy they lift.
Training volume — not load or intensity — is the primary driver of muscle growth across all populations. People who increase weekly set count see consistent gains, regardless of how heavy they lift.
[Part 3 of 3]
Hormones like testosterone and growth hormone correlate with muscle size but don’t cause hypertrophy. Even low-hormone individuals build significant muscle with proper volume — age and sex don’t limit potential.
Hormones like testosterone and growth hormone correlate with muscle size but don’t cause hypertrophy. Even low-hormone individuals build significant muscle with proper volume — age and sex don’t limit potential.