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

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 ...

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.