Gait as a Mirror of Health
Gait is not just a way to get from point A to point B. Each step, arm swing, and torso tilt is like a signature the body leaves in space. Doctors have long noticed that disease alters gait, but they considered it merely a symptom of a specific problem: if you limp, your leg hurts. Now it turns out that gait is a whole book about health, and you can read it with an ordinary camera.