Robert F. Kennedy Jr. started developing symptoms of the condition in 1996. Spasmodic dysphonia is a neurological condition that causes certain muscles in the “voice box,” or larynx, to spasm, often making the voice sound raspy, strained or breathy.

Kennedy's condition is called spasmodic dysphonia, which is a neurologic disorder that can affect the voice and speech by causing the muscles that generate a person’s voice to go into periods of spasm, according to Penn Medicine. It is a lifelong condition, but can be improved with treatment in some cases, according to Penn Medicine.

What is spasmodic dysphonia? The condition that makes RFK Jr sound 'strangled’ - Donald Trump’s pick to lead the Department of Health and Human Services previously said that he ‘can’t stand’ his voice

Robert F. Kennedy Jr. has spasmodic dysphonia, a voice disorder caused by a malfunction in the brain. Here’s what to know.

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

Robert F. Kennedy Jr. has a disorder called spasmodic dysphonia that makes it sound like his voice is shaking. He has said the neurological disease began to affect him when he was 42. “I have a tremble in my

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

Spasmodic dysphonia impacts about 50,000 people in North America. Here's what to know about what causes spasmodic dysphonia and how it's treated.

Kennedy Jr., known to the world as RFK Jr. for short, suffers from "spasmodic dysphonia, a specific form of an involuntary movement disorder called dystonia that affects only the voice box," ABC News has reported.

Robert F. Kennedy Jr. explains why his voice sounds raspy and strained, causing difficulty when he speaks. Here's more about spasmodic dyshphonia

Robert F. Kennedy, Jr. has struggled for decades with a rare disorder affecting his speech, causing his voice to sound strained and raspy when he speaks.

Robert F. Kennedy Jr.’s raspy voice was on full display when his high-stakes confirmation hearing got underway Wednesday — as lawmakers grilled President Trump’s controversial pick to