Abstract

It is rising "voice disorder", who worried about that hard to make a voice.
"It is difficult to make a voice at the beginning of the talk."
"Even simple words are jammed."
"I cnnot make a big voice and high voice."
"Talking for a long time, voice witheres, tired."
and so on, there are various symptoms.
It is hard to be understand fo low awareness, it often develops into mental illness, or is overlooked in the hospital.
Special doctor who is reliable from professionals of singers or announcers explain how to solve the dangerous troubles of voice if left alone.

Voice trouble example: Senile hoarseness, Vocal cord paralysis, Vocal cord nodule, Spasmodic dysphonia, Psychogenic dysphonia, Functional dysphonia and so on

Author’s Information

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