Speech and Swallowing: A Body Guide to Parkinson's Disease

About 75 percent of people with PD experience changes in speech and voice at some time during the course of the disease. These changes usually come on gradually and can vary from mild to severe.

Communication is a vital part of daily life and extends beyond speech and voice abilities. It also includes the ability to formulate your ideas into a message; understand messages and words conveyed by others; and the ability to put your ideas into words. Communication also includes the ability to us...