Spasmodic dysphonia (SD) is defined as a voice disorder. It leads to involuntary spasms in your larynx or voice box muscles. It causes your voice to break and have a strained, tight or strangled sound. Spasmodic dysphonia can lead to issues that range from having difficulty saying one or two words to not having the ability to talk at all. It's a life-long condition, often affecting women (usually between 30 and 50 years old) more than men. … Read More