Everyone has some belly fat, even people who have flat abs.
That's normal. But too much belly fat can affect your health in a way that other fat doesn't.
Some of your fat is right under your skin. Other fat is deeper inside, around your heart, lungs, liver, and other organs.
It's that deeper fat -- called "visceral" fat -- that may be the bigger problem, even for thin people.
Find out more about belly fat by clicking on source button: Source