One of the best ways to keep Alzheimer's disease (or any type of cognitive decline) at bay is to take charge of what you put in your body. Dr. Daniel and Tana Amen both have always said that "food is medicine or it's poison", and this notion is especially true when it comes to preventing cognitive decline. In this fourth and final episode with "The End of Alzheimer's Program" author Dr. Dale Bredesen, he and the Amens break down exactly what you should be eating to decimate your risk of Alzheimer's and dementia.