If you've ever wanted to feel like you lost weight, have we got a new study for you. Researchers at the University of Sussex in England found that smelling a lemon makes us feel thinner, and ups our self-esteem even though it doesn't actually make us lose weight. People who sniffed a lemon felt thinner, lighter, and better about their body while smelling the scent of vanilla did the opposite. It made them feel heavier and more out of shape than they really were. It has to do with how our brain associates different smells with various other things. When we think of lemons, we think of freshness but when we think of vanilla, we think of things like cookies and ice cream that aren't good for us. Researchers think it might be useful for people with eating disorders, who have issues with body image. Previous studies have shown that certain sounds can do the same thing. When researchers changed the pitch of people's footsteps, they felt thinner, happier, and even changed the way they walked. But this is the first study to show smells can do it too.