Advances in medical diagnostics are playing a major role in many significant health care innovations. Much of this progress involves contributions from engineers. Among them is Erica Forzani, an associate professor in the School for Engineering of Matter, Transport and Energy, part of the Fulton Schools, and deputy director of ASU’s Biodesign Center for Bioelectronics and Biosensors. She and her colleagues have developed Breezing, a handheld device into which people can breathe and instantly get vital information about their metabolic rates. An advanced version, called Breezing Pro, is  being used in research, fitness and sports training and health management.