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

There's a peculiar quality to Robert F. Kennedy Jr.'s voice that is noticeable when he addresses the public. It is caused by a rare medical condition.

While there is no single therapy that effectively treats spasmodic dysphonia, some interventions can help people improve their voices. For example, Botox injected into the larynx muscles can block ...

Spasmodic dysphonia (SD) is a neurological disorder caused by dystonia (abnormal sustained muscle contraction) of the vocal cords, hence also referred to as “laryngeal dystonia”. Depending on the ...

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.