Gold, silver, and bronze weren't the only colors decorating Beijing Olympians. Some athletes wore Kinesio Tex Tape in strips of pink, blue, and black. This adhesive is popular because it speeds healing without limiting range of motion, says Amol Saxena, D.P.M., a sports podiatrist in Palo Alto, California. "The tape pulls up the skin slightly, allowing more blood to flow to the injured area," he says. He teaches runners, including bronze medalist Shalane Flanagan, how to put it on...