After all of your hard work dieting and exercising you can end up producing something called runner’s face.

And I bet you didn’t even know it was a problem .

Dr. Brian S. Glatt, a board-certified plastic surgeon in New Jersey, calls that skinny, Skeletor-esque look some dedicated runners may unwittingly develop, runner’s face.

And he believes that it needs to be fixed.

Runner’s face generally occurs in both men and women ages 40+ who exercise to improve their body, and in doing so end up with a skeletal and bony face. When exercising, an athlete burns off fat beneath the layers of his/her skin. The marked loss of fatty tissue results in a loss of volume which leads to a prominent appearance of the bones, accelerated development of skin laxity and deepening of wrinkles. Though you may look like a 20-year-old from the neck down—your face will easily give away your age.