It's a fact that most people consume more calories than they can burn off. You can take two people, feed them the same amount, give them the same amount of exercise, and one would be overweight while the other wasn't. GENETICS are a B word. It's like blaming a healthy 40 year old for having a heart attack. Some people are genetically predisposed for crap. If we can use technology to improve the quality of life for some folks, I'm all for it.