The Marathon Runner’s Knee 
Jake was training for a marathon, but three weeks out, his knee flared up—a pulsing, sharp reminder of an old injury. He couldn’t run more than a mile without limping. He picked up an intensive, over-the-counter anti-inflammatory tablet. He took the dose before his next planned long run. This time, the pounding in his knee stayed muted, allowing him to push through the full distance. The pill didn’t heal the injury, but it gave him the crucial, temporary relief he needed to finish his training and hit the starting line.