Drinking Coffee May Reduce The Risk Of Alzheimers Disease. First, the studies showed that caffeine consumption reduced heart disease and had anti cancer properties. We already knew that coffee increased alertness and awareness. Now, studies show that coffee reduces the accumulation of beta-amyloid proteins, which clump up and clog the brain pathways in Alzheimers patients. Forget an apple a day. Drink 4 to 6 cups of coffee, and keep your wits. This is not a joke, he said between sips of his favorite beverage. Coffee cup