It’s all in the BRAIN! – Why do some people gain weight easily, while others never seem to get supersized, no matter what they eat? And when those of us who gain weight DO get fat, why do men and women pack the fat on in different places on the body?
A protein called SIRT1, which is found in cells throughout the body, must be present in a specific set of brain neurons in order to prevent weight gain after eating high-calorie meals. Also, an enzyme in the brain known as PI3 kinase might control the increased generation of body heat that helps burn off excess calories after eating a high-fat meal. If your brain is deficient in either of these substances, you’ll have to watch what you eat more carefully than the next person.