Recent innovations, including deep brain stimulation and new medications, have significantly improved the lives of people who have Parkinson's disease. Nevertheless, patients and families continue to face many challenges. They have long relied on this book for reliable advice about medical, emotional, and physical issues. Bringing this trusted guide up to date, three expert neurologists describe new understandings gained by five years of additional research on Parkinson's disease. They give a new focus to the importance of exercise, share new information about imaging techniques such as SPECT Scan and DATScan that are aiding in the diagnosis, and detail new findings about the genetics of the disease and promising uses of new technologies such as tablet devices for people who have trouble communicating. The authors also provide information about impulse control disorders caused by some drugs used to address the symptoms of the disease, as well as a complete update on treatments such as medications, surgery, and more.