This Essentials book answers all the key questions asked about Parkinson's disease in succinct, accessible and up-to-date form. Parkinson's is a progressive neurological disease involving three main symptoms: tremor, stiffness and slowness of movement. It is an extremely complicated and variable condition and no two people are exactly alike in terms of the symptoms they experience and how these progress. Accurate information is essential to help you understand how Parkinson's affects you personally. This introductory guide answers 50 key questions asked by people with Parkinson's and their families. It provides a summary of symptoms and treatments, and offers practical advice on living life with Parkinson's. There is a glossary at the end of this book.