We are all aware of the medical dangers of smoking, but did you know that lighting up will also leave your skin looking wrinkled and aged?

The research on smoking’s effect on your face has been around for a long time. The effects are quantifiable, too. As far back as 1985, scientists coined the term “smoker’s face” and have noted that, on average, smokers look 1.4 years older than nonsmokers. Telltale signs include discoloration, wrinkles, loose skin and poor complexion.

The science behind it shows that smoking creates free radicals that attack the collagen and elastin that keep your skin plump and smooth. The carbon monoxide produced by cigarettes displaces the oxygen in your skin, leaving you looking grey and discolored. Furthermore, smoking impedes blood supply to the skin. Beyond giving you dark circles under you eyes from a poor night’s sleep, over time, smoking leads to crow’s feet and increased baggy skin below your eyes.

The cosmetic effects of smoking reach beyond your face. With prolonged smoking, teeth become yellowed and similar discoloration can appear in your fingertips. The nicotine in cigarettes also damages the strength and elasticity of skin, which can lead to an increased likelihood of stretch marks.

If you want your skin to look its best, stay away from cigarettes. Beyond being a danger to your health, they’ll prematurely age your skin. Maintain younger looking skin and, even more importantly, maintain your health by avoiding smoking all together.