Why So Much of What We Know About Dementia Has Changed

As scientists make strides against dementia with new tests and drugs, Dr. Sanjay Gupta talks with journalist Robert Kolker about “The Vanishing Family,” his new book chronicling one family’s struggle with a particular form of the disease. Madeleine Thompson and Sofia Sanchez produced this episode with assistance from Andrew Quimby. Video production by Jilanne Doom, with assistance from Jasmine Brooks. Andrea Kane is the medical writer. Dan Dzula is the technical director, and Dan Bloom is the showrunner. Ben Tinker is vice president of news at CNN, and Zach Goldbaum is senior director of podcasts at CNN. Learn more about your ad choices. Visit podcastchoices.com/adchoices