You brush. You floss. You rinse with minty mouthwash. But still, every morning you wake up feeling like a dragon with a hangover. Morning breath might be common, but it’s not exactly pleasant. What causes it—and why do some people seem to have it worse than others? Turns out, it’s a mix of dry mouth, bacteria, and what you ate (or drank) the night before. The good news? A few simple changes could help tame the stink—and get your mornings off to a fresher start.