Twenty percent of all the glucose in your body is used by the brain, and as you go from being normal to having mild cognitive impairment, which is a precursor for Alzheimer's, all the way to Alzheimer's disease, then there are areas of the brain that stop using glucose.
20% de toda la glucosa en tu cuerpo es utilizada por tu cerebro, y mientras pasas de  ser alguien normal a tener un impedimento  cognitivo menor, que es un precursor del Alzheimer, hasta tener Alzheimer, habrá áreas del cerebro que dejarán de usar glucosa.