If you’d like to look younger, do these three things.

If you’d like to look ten years younger, smile, sit up straight and fix your hair. 

In a study where participants were asked to guess the age of photographs, subjects were estimated at about ten years younger when their expression was a natural, wide smile. When the expression was neutral, the estimated age was most accurate. If they looked fearful, sad or mad, they looked a lot older.

Posture had a big impact on age perception as well. Those who slouched looked older, and shaved years off their look when they sat up straight. After facial expression and posture, the next most aging factors was hair and eyebrows. Frizzy or damaged hair and unruly or thinning eyebrows can add years to your appearance. Get a handle on those and you’ll look significantly younger.