Extrinsic aging results from environmental factors. In fact, sun exposure causes the majority of premature aging, a.k.a. photoaging. Ultraviolet rays break down collagen and elastin, making skin loose and weak. Even spending a short amount of time outdoors with unprotected skin can result in freckles, age spots, spider veins and fine lines and wrinkles. Skin also becomes discolored, rough and dry. According to the American Academy of Dermatology (ADA), even people in their 20’s can show these signs of photoaging.

Other external factors include facial exercises, gravity, how you sleep and smoking. Lighting up, for instance, is such a powerful contributor that, like the sun, it can cause wrinkles in smokers as young as 20, according to the ADA.

So, if you’re hoping for a resurgence in the youthful glow of your skin, put down the cigarette, throw on a sun hat and stop worrying!