An outline of the top half of a human body contains illustrations of the brain and the stomach in their relative locations. A line extends from the location of the hypothalamus in the brain illustration, out to the left, past the outline, where it meets a box labeled “Hunger.” Down-facing arrows connect that box to a box labeled “Food,” and the box labeled “Food” to a box labeled “Satiety.” A line extends out to the right from the box labeled “Satiety,” and meets with the illustration of the stomach.