Smoking and skin aging in identical twins

(Disponible en anglais seulement.)

Smoking can prematurely age skin. This observation of a unique twin pair with similar sun exposure examines the effects of smoking on skin aging. The twin who smokes demonstrated more severe skin aging than the twin who does not smoke.

http://archderm.ama-assn.org/cgi/content/abstract/143/12/1543

Comment: Appealing to vanity can be a great motivator for quitting smoking.