Right handed, English speaking, be a non-smoker (never smoked more than 2 cigarettes per month). Subjects will have a Body Mass Index between 25-35 kg/m2 (overweight/obese category I) range. Subjects are in good health. Subjects are able to provide a letter from their physician stating that they have had a physical exam in the past year and are in general good health and have specifically tested in the normal range for thyroid function and Hemoglobin 1Ac (and as such do not suffer from common metabolic disorders). In addition to this we will at intake confirm normal blood pressure, blood sugar and electrolyte balance for every subject.