Poison in paradise.

First episode in a 6-part series in which Dr. Oliver Sacks visits various parts of the world seeking examples of rare neurological disorders and relates his findings to existing knowledge of these diseases. "Part 1: Poison in Paradise" Oliver Sacks visits the U.S. Pacific island of Guam to observe lytico-bodig, a Parkinson-like disease. A vegetable used in the local diet is a possible cause.