Muscle Insertions Explained: Good vs Bad Genetics
Biceps peak, ab blocks, lat sweep, calf gaps. How insertions decide your shape, muscle by muscle.
Read it, then watch it
The Professor Mass blog
Every post is the written version of a video lesson, with the key points, tables and sources. Watch the video right inside each post.
Bone Structure Explained: The Frame Under Your Muscle
Clavicles, waist, hips, torso and limb length. The 8 bones that set your ceiling.
What Is FFMI? Every Level Explained
From 17 to 35: what each level looks like, the natural limit of 25 and the natty-or-not debate.
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