“Remembering to Eat Your Fruits and Vegetables†May Get a Little Harder as We Get Older
To most people, memory loss means Alzheimer’s disease, but in reality that is only half the picture. A large percentage of cognitive decline in the elderly is due to vascular changes in the brain, as described by Prashanthi Vemuri, a Mayo Clinic researcher who studies cognitive decline.
As discussed in the Nutrition Action Healthletter, the distinctive characteristic of Alzheimer’s disease is the presence of amyloid, abnormal fragments of protein in the brain. These fragments collect in the brain and may trigger a chain of events that eventually leads to damaged nerve cells. Vascular dementia, on the other hand, is due to damage to blood vessels in the brain. On scans, it can show up as brain cells that have died from lack of oxygen after tiny blood vessels became blocked. In both cases, people are not aware of the amyloid accumulation or that the small blood vessels are damaged. By age 70, about 15% of people have vascular disease in the brain, and some people with memory loss have both amyloid and vascular damage.








