Mounting research into causes of dementia and cognitive decline have produced the recognition that two of the potentially modifiable risk factors into these conditions are diet and exercise. In a recent study at King’s College, London 418 adults age 65 and up were tested every two to three years over a 12-year period. Results revealed that cognitive decline and Alzheimer’s Disease were linked to levels of neural stem cell death. Importantly, underlying which was low levels of vitamin D, carotenoids, and lipids