Ever catch a glimpse of yourself in the mirror and think, "Not bad," only to see a photo later and wonder who that person is? You're not imagining things.

The good news is that your camera isn't necessarily exposing some hidden reality. According to scientists, one major reason we look different in photos is that mirrors show us a reversed version of our faces. Since that's the version we see every day, our brains become comfortable with it. When we see a photograph, which shows us as other people see us, subtle facial asymmetries suddenly appear unfamiliar and can make us look "off" to ourselves. 

Psychologists call this the "mere exposure effect." Simply put, we tend to prefer things that are familiar. Because we've spent years looking at our mirror image, we often like that version of ourselves better than the version captured by a camera. Interestingly, friends and family don't experience that same disconnect because they're already used to seeing the non-reversed version of our face. 

Photography can add its own distortions as well. Camera lenses, lighting, angles, and distance can all subtly change how features appear. That's especially true with smartphone selfies, which are often taken from very close range and can exaggerate things like noses, chins, and facial proportions. A photo is just a single frozen moment, while people in real life see a constantly moving face full of expressions and personality. 

The bottom line? The mirror isn't lying, and the camera isn't either. They're simply showing two different versions of the same face. So the next time a photo makes you cringe, remember that physics and psychology are probably playing a bigger role than your appearance.