Individuals who have difficulties with the act of speaking, such as stuttering and hoarseness, seek out Alexander Technique as a way to improve their speaking skills. 

The entire reason that Alexander Technique exists today is that its founder, F.M. Alexander was an actor who developed hoarseness when performing on stage. Through years of self-study he was able to figure out and inhibit the bad habits that caused his hoarseness.

In one chapter of his book, The Use of the Self, Alexander describes how individuals stutter with their bodies, not with just their tongues and lips. 

Stutterers tend to tighten the entire body, but especially the neck, shoulders, face, jaw, mouth, and tongue as they try to speak smoothly. They may have an unconscious, anxious, and anticipatory assumption that there is a great effort required to speak, which translates into doing too much physically.

Individuals discover through Alexander lessons that the stimulus to speak sets up a quick chain of events of mal-coordinated physical efforts that begins the moment just before they attempt to speak. They learn that their efforts to speak actually get in the way of speaking fluently. 

Students learn to improve their speaking through the Alexander Technique principles of inhibition and directions. In order to not stutter, they must first inhibit all their reactive and habitual responses to speak. Once they learn how to inhibit, they can replace their harmful actions with a much quieter, poised, and thoughtful process (directions) that takes into account the use of the entire body in the act of speaking.