The elastic recoil of the lungs provides the necessary acoustic energy, while the diaphragm, intercostal muscles, and abdominal muscles manipulate how that air is released through the larynx, a ...

However, there are diseases that cause vocal cord paralysis, in which you can’t control the movement of the muscles that control your voice when the nerve impulses to your voice box (larynx ...

The neurological condition can cause people like Robert F. Kennedy Jr. to have voices that break and can sound "strangled." ...

RFK Jr.'s raspy voice is due to spasmodic dysphonia. The neurological disorder produces muscle spasms in the voice box.