that 40% of teachers in the U.S. have vocal problems and cost an estimated 2.5 billion dollars yearly for subs, medical expenses and early retirement?
that teachers are the largest group of professionals that use the voice as their primary tool of trade?
that female teachers use their voices 10% more than their male counterparts and tend to speak louder?
www.voiceacademy.org
www.speechpathology.com
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