![]() ![]() ![]() Weakened and dry vocal chords become stringy, which prevent normal vibration, causing higher pitched voices that sound thin. Our respiratory systems and torsos change, too, with our lungs and chest cavities becoming more rigid, while our spines curve, causing us to stoop over (for some a little, others a lot). When we age our vocal chords weaken and become drier. It is true that as we age our voices change,” says Shah. “In my lab we look at acoustic data because perception can be misleading and the hard numbers confirm it. The vocal chords should vibrate between 90 and 230 times per minute, with young people experiencing the most movement and older people experiencing the least, explains Amee Shah, associate professor and director of the Research Laboratory in Speech Acoustics and Perception at Cleveland State University. Evidence confirms that voices do change with age.
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