Why does fat creep on so easily? It might seem obvious: we eat too much and move too little. That’s the logic most health agencies follow. The World Health Organization describes obesity as a simple energy imbalance—too many calories in, too few out. And from that point of view, the solution seems just as simple: eat less, move more.
But if that approach worked for everyone, we wouldn’t see obesity rates steadily climbing. So let’s look at some of the subtle behaviors and habits that often get overlooked but may be quietly contributing to fat gain—even when your diet seems “not that bad.”

