The new "appendages" are the shell for new lungs. A lung transplant recipient—or someone living with advanced COPD—is not really a patient. He is the manager of a small mobile chemical laboratory. Every morning and every evening, I stand in front of organized rows of pills. They look harmless enough until you remember that each one can alter kidney function, blood pressure, immune response, glucose levels, mood, sleep, appetite, or the general stability of civilization inside