Meet Sophie Kaye, a teenager who lost most of her hearing suddenly at age seven. Although the cause of Sophie's hearing loss is unknown, she does what she can to protect the hearing that remains from loud noise. In this 6minute video, Sophie explains in her own words how important our hearing is and what we can do to protect it. Produced by the National Institute on Deafness and Other Communication Disorders, National Institutes of Health, for the Noisy Planet website: (http://www.noisyplanet.nidcd.nih.gov/...)