Why Fascia, Not Muscle, Sets Your Posture
You are not slouching because you lack willpower. You are holding a shape your connective tissue learned, and no amount of sitting up straight rewrites it.

You are not slouching because you lack willpower. You are holding a shape your connective tissue learned, and no amount of sitting up straight rewrites it.

The diamond shaped sheet across your lower back transfers load between your legs, your spine and your arms. When it stops sliding, the same pain keeps coming back. Here is what it does and why it stiffens.