A City Guide To Hsiang-yin for g. Meyer and Stunkard ; Price and Gottesman have also pointed to a genetic component to obesity with genetic explanations. These explanations are generally one of three types . Obese individuals are born with a greater number of fat cells. Evidence of this is limited. For example, the number of fat cells in a person of average weight and in many mildly obese individuals is typically ? million. The number of cells is dramatically increased in a severely obese person, implying the formation of new fat cells. A City Guide To Hsiang-yin 2016.