It causes sudden involuntary spasms that trigger the vocal cords to stiffen and close. The spasms disrupt the vibration of the vocal cords and the ability to make sounds. Abductor spasmodic dyspho ...
“The spasms interfere with vibration of the vocal cords and with making sound,” Johns Hopkins reported. “Stress can make spasms worse. Speech sounds are strained and full of effort ...
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