In addition, some patients may have bizarre gait or difficulties with their balance that are often triggered by psychological of physical stress. Speech and voice disorders are also relatively common ...
Spasmodic dysphonia affects up to 50,000 people in North America, and is a subset of dystonia, a muscle contraction disorder ...
Robert F. Kennedy Jr. was diagnosed with spasmodic dysphonia at age 42, causing his voice to become raspy. Here's what to know about the chronic neurological speech disorder.