1) Parkinson disease and driving and 2) Topic of the month: Encephalopathy caused by systemic disease. This podcast for the Neurology Journal begins and closes with Dr. Robert Gross, Editor-in-Chief, briefly discussing highlighted articles from the print issue of Neurology. In the second segment Dr. John Morgan interviews Dr. Alex Crizzle about his paper on Parkinson disease and driving. Dr. Stacey Clardy is reading our e-Pearl of the week about tumarkin attacks-the otolithic catastrophe. In the next part of the podcast Dr. Ted Burns interviews Drs. Steven Lewis and Allison Weathers about electrolytes and other metabolic disorders. The participants had nothing to disclose except Drs. Morgan, Crizzle, Clardy, Burns, Lewis and Weathers.Dr. Morgan has served as a consultant or received speaking honoraria for work with Chelsea Therapeutics, GlaxoSmithKline, Oakstone, Teva Pharmaceuticals, UCB Pharma, GE Healthcare, Impax Laboratories and Veloxis; has received compensation for review of medical records and expert witness testimony in multiple cases of litigation involving neurologic conditions and his clinical group receives funding from the National Parkinson Foundation as a Center of Excellence. Dr. Crizzle receives research support from the National Parkinson's Foundation.Dr. Clardy serves on the editorial team for the Neurology® Resident and Fellow Section. Dr. Burns serves as Podcast Editor for Neurology®; performs EMG studies in his neuromuscular practice (35% effort); and has received research support for consulting activities with CSL Behring and Alexion Pharmaceuticals.Dr. Lewis serves as CME Section Co-Editor for Neurology® and as Associate Editor for Continuum: Lifelong Learning in Neurology®; receives royalties for the books: Field Guide to the Neurologic Examination and Neurology for the Non-Neurologist and anticipates receiving royalties for the book: Neurologic Disorders due to Systemic Disease.Dr. Weathers receives honoraria as an AAN speaker.