Actually….talk up. There is a great new project by MIT students to develop a diagnostic test for Parkinson’s disease using voice pattern recognition.
It turns out that the nervous system control of the vocal cords has a strong correlation with nervous system changes, and the students at MIT are in the process of perfecting this diagnostic tool.
You can participate in helping them with their project by visiting their website
www.parkinsonsvoice.org and making a 3 minute phone call to record your voice pattern. This will help them with a database of information they are developing.