Millions worldwide suffer from lower back pain. In Japan alone, an estimated 28 million people have the condition. It can be debilitating, and pinpointing the cause is often difficult. Now orthopedists and psychiatrists in Japan have joined hands to bring relief to aching backs. And a Japanese doctor has developed a new surgical procedure for herniated spinal discs that's less taxing for patients. We'll also share an exercise rooted in sumo wrestling that you can try at home, to keep back pain at bay.