Chronic pain affects 1 in 3 Americans and exerts more than a $600-billion drain on the economy annually. It is the largest invisible epidemic in the land. Having treated thousands of patients with chronic pain-often when they were at their most vulnerable-Lynn R. Webster, M.D., continues to believe there is hope. Ultimately, a cure for pain will require more research, better therapies, and improved policies. But healing can begin today with a broad-based...