Why do people shrink?
People don’t shrink as they age, they compensate. Everyone’s posture changes as they age because of the loss of ligament integrity in their joints, especially in the feet. Ligaments stabilize joints, and are made of collagen. Ligaments weaken and lengthen over time and use. This is called plastic deformity of ligament structures. The resulting hypermobility (abnormal motion) and displacement of the joints results in compensation of the foot. These changes are magnified up the leg from the foot, and the resulting changes in the pelvis and spine are greater than the changes in the foot.
Dr Steven D. Stark - Podiatry, Orthotics, Sports Medicine - Vancouver, White Rock