I've been known to struggle with my weight a good bit. Back when the wii still worked wii fit would routinely declare me obese. Probably if I had eaten and drank everything that caught my taste buds this year I'd have shot up an easy forty pounds. Instead I've held fairly steady and only gained about 2 pounds this year. If I use the government metric that means I've lost 38 pounds!! No wait.... I'm still obese; my waistline is virtually unchanged. I need to make real changes to have real effects.
Anyhow thats how I relate to U.S. spending. Exercise = taxes, Calorie intake = spending. You don't have to burn off what you don't eat. You don't have to pay for what you don't spend.