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Smokers Lines and Facial Wrinkling One of the most recognizable signs of smoking is deep vertical lines around the lips , often called smokers lines. These form from: Repeated lip pursing while inhaling Reduced collagen production Chronic dehydration from nicotines diuretic effects Smoking also accelerates wrinkling around the eyes (crows feet) and forehead , where repetitive expressions meet collagen loss

This valve prevents food and gasses from refluxing back up through the esophagus

Naud, J., Dongelmans, M

A historical overview Cigarette use gained momentum around the 1940s as men headed to war and women began to work