According to a study conducted by Jane E. Freedman, M.D., assistant professor of medicine and pharmacology at Georgetown University, "The flavonoids in purple grape juice work in two related pathways: First, they have a protective effect on antioxidants, allowing them to provide active protection against oxidative stress for longer periods. Second, they also seem to have a direct, positive effect on a number of biological functions like platelet activity, nitric oxide production, and signaling in cells, all of which may be protective factors."
We can't think of a better reason to enjoy the Aging Backwards Purple Grape Granita, except maybe that it tastes great.
Mix all ingredients together in a blender and enjoy!