A low or soft voice
Parkinson’s disease affects the smooth muscles that carry out voice production in pharynx. People with Parkinson’s disease experience that their voice goes very soft and the pitch of their voice is very soft. A change in the tone and pitch of your voice is one of the signs of Parkinson’s disease. In addition, the voice of a Parkinson’s disease patient starts sounding hoarse and softer with age. An infection in chest or cold can also make you sound different but if a person experience persistent low and soft voice, then he must pay a visit to doctor to rule out the condition of Parkinson’s disease.