Why does Dr. Boone suggest stopping the "ah" after 10 seconds?

Dr. Boone's suggestion to stop the "ah" after 10 seconds is based on the observation that most normal speech utterances typically do not extend beyond this duration. This guideline helps to establish a practical benchmark for vocal exercises, ensuring that patients develop the ability to control their phonation within realistic limits that mimic everyday communication patterns.

By focusing on a duration aligned with normal speaking habits, patients can better relate their practice to functional speech situations, making the exercise more relevant and effective. The emphasis on this time frame supports the development of vocal endurance and control without straying into unnecessarily long phonation, which could lead to strain or fatigue.

In contrast, the other options do not accurately capture the rationale behind the 10-second limit, as they either overgeneralize the application of vocal exercises or imply a one-size-fits-all approach that may not accommodate individual needs. Thus, the practice optimizes vocal health in a context that is familiar and applicable to everyday utterances.