If you know someone with Parkinson's disease, you know how debilitating it can be. The neurological disease causes uncontrollable shaking, and slowly robs people of their lives.
Medications help, but there's no cure, and no known cause.
Now, several teams of researchers at Mayo Clinic are studying families who have Parkinson's to see if there's a genetic component that causes the disease. If so, they hope to be able to then identify those at risk. Here's this week's Medical Edge.