The latest luxury for aging baby boomers looking for the fountain of youth is the so-called "voice-lift," designed to make patients' voices sound more youthful. In the past, doctors have mostly performed vocal chord surgery on people with voice-robbing diseases or injury. Now cosmetic surgery for the voice — the voice lift — is becoming more widely known among an aging population, dismayed to notice hoarseness that makes them sound older creeping into their voices. Professionals who use their voices — including performers, lawyers and telephone operators — are seeking out the procedure, hoping to shave years off the sound...