If you're concerned about looking old in photos - don't smile.
A new study had people look at photos of models and guess their age. The average age of the models was 25, but participants guessed their age was 28.5 when they were smiling. When the models had a neutral face and no smile, they were estimated to be 27.5, and when they looked surprised, people thought they were 26.5.
Researchers concluded that when you smile, the wrinkles around your eyes are accentuated, making you look older, but when you are surprised, the wrinkles are smoothed out.
So if you want to look young in pictures, stay neutral or better yet, look surprised.
Photo Credit: Getty