In the West, at age 85, the chances of having Alzheimer's Disease is fifty percent. Forgetting names and forgetting why we go into a room could be harbingers of future cognitive decline. As there is no magic pill to treat Alzheimer's Disease, prevention is important. Some scientists refer to Alzheimer's Disease as diabetes, type three. A Harvard Study in the New England Journal of Medicine in 2013 showed that elevated blood sugar correlated with the development of dementia. Diabetes increases the risk of dementia four times, and a high carbohydrate diet increases the risk of dementia by 88 %. High blood sugar shrinks the hippocampus (the brain memory center). Amy connects the dots between the effects of sugar and insulin on cognitive decline and what we can do to prevent cognitive decline.