Michael Wand of the Cognitive Systems Laboratory at the Karlsruhe Institute of Technology in Germany demonstrates a technology that recognizes speech through muscle activity in the face rather than sound. Gretchen Cuda for NPR hide caption

itoggle caption Gretchen Cuda for NPR

An X-ray of Schneider's right femur (thighbone), which broke suddenly as she was standing on a New York subway train. Courtesy of Dr. Jennifer Schneider hide caption

itoggle caption Courtesy of Dr. Jennifer Schneider

Robert O'Rourke was diagnosed with idiopathic pulmonary fibrosis in late 2006. The lung disease causes scarring in the lungs, which makes breathing difficult. Courtesy of Robert O'Rourke hide caption

itoggle caption Courtesy of Robert O'Rourke