If you stabbed your leg with an ice pick, you'd probably bleed. That's a metabolic result that follows your actions. It's no disease, it's just a result. Same thing with obesity, diabetes, cancer, heart disease, osteoporosis, and many other so-called diseases. A person who drinks a 12-pack of cola every day, while avoiding all exercise, is going to end up obese and diabetic. That doesn't make obesity a disease, it just makes it a result. Same as stabbing yourself with an ice pick, only slower.