Not all fat is unhealthy. But when it does cause health problems … it also drives chronic pain. And it’s mostly the belly fat that does this — the visceral fat tucked around your organs like foam packing peanuts. Some people with high body mass index are just fine, while others with a low BMI are still at risk — the “obesity paradox” — usually because they have too much belly fat specifically. [Image caption: Not all fat is unhealthy. But when it is unhealthy … it is a risk fa...