- To evaluate neuronal response to high-versus-low calorie visual food stimuli under fasted (hunger) and fed (satiated) states in brain regions of interest (hypothalamus, lateral orbitofrontal cortex, ventral striatum, insula) using blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) before and after a lifestyle (diet and exercise counseling) intervention or usual care in obese EC patients. We will also compare the neuronal responses in obese EC patients to those from normal weight subjects without cancer being seen at the same gynecologic clinic; and, explore modification of the neuronal signals by candidate genes and serum biomarkers in the hypothalamic pituitary-adrenal axis, serotonergic and inflammatory pathways.