Dr. Cory Portnuff is an audiologist in practice in Denver, working with noise-induced hearing loss (NIHL) on a daily basis. He’s also a Ph.D. candidate at the University of Colorado and researches music-induced hearing loss (MIHL), with a focus on portable listening devices. His research has been published in the Journal of the American Academy of Audiology, and he has appeared in The New York Times on this topic.