Updated: 10/30/2013 9:01 PM
Created: 10/30/2013 5:05 PM KSTP.com
By: Heidi Enninga
A new study aims to show exactly how smoking can affect looks.
A panel of plastic surgery residents compared the faces of 79 identical twins in the research.
The study was published Tuesday in the journal Plastic and Reconstructive Surgery.
Check out the photos from the study in the video player.