Geez. I thought everyone knew that there is a direct correlation between weight and brain function. The bigger the body, the bigger the brain. Isn't that obvious? There's a doctor, (or something like that) Virgie Tovar, who has research showing that brain function is directly related to body weight. If you don't eat intuitively and feed every craving , you are denying your brain the fuel it requires to raise brain function.  There's a brilliant woman, Ragen Chastain, who has revolutionized the way we think of fitness. Along with HAES, scientific studies and anecdotal evidence has proven that joyful movement is far healthier than running, swimming, or anything you do in the gym. Ragen is a professional athlete, so embracing joyful movement as being more beneficial was difficult at first. But as soon as she realized she was wasting eating time on fitness, she was a convert.