We all know smoking has terrible health consequences.
But these photos — used for research carried out at Case Western University in the US — offer a compelling visual demonstration of how smoking changes our features.
Take a look at each of these sets of identical twins and see if you can guess which is the smoker. We guessed every single one correctly, suggesting that long-term smoking ages faces in a pretty drastic way:
Answer: the twin on the right is the smoker.
Answer: the twin on the left is the smoker.
Answer: The twin on the right is the smoker.
Answer: The twin on the right is the smoker.
Answer: both are smokers, but the twin on the right has been smoking for 14 years longer than the twin on the left.
Answer: The twin on the right is the smoker.
Did you guess right? Would images like this put you off smoking forever?
