Do this 30x daily to restore your spine’s normal curvature. — Functional scoliosis is a type of spinal curvature that is usually temporary and correctable. Unlike structural scoliosis, which is due to permanent bone or tissue abnormalities, functional scoliosis is often caused by muscle imbalances, poor posture, or leg length discrepancies. It can develop from habits that create uneven forces on the spine, such as consistently leaning to one side, carrying heavy bags on one shoulder, or sitting