Alzheimer's disease is the most common form of dementia which is commonly referred to as memory loss. The disease is defined biologically by the build up of plaque and tangles of protein in the brain causing impairment of nerve cells. In Chapter 7 of the textbook, people who were more active and used their brain more were less likely to acquire Alzheimer's than people who led sedentary lifestyles. Although you can't control your age and genetic factors which often can lead to Alzheimer's, you can control what you eat and how much you exercise.
By leading a healthy lifestyle which promotes good cardiovascular functioning, normal blood pressure,healthy body weight, no tobacco use and non excessive alcohol use, you can help create a healthy functioning brain that will help not only prevent Alzheimer's disease, but slow down the stages of the disease. Also, staying connected socially can keep your memory sharp at old ages when this disease is prevalent. Next time you see Grandma on Facebook, understand that she is just trying to exercise her brain.