Wrinkles. Not to get all scientific on you, but your wrinkles are mainly determined by your genetics. After that,the environment can play a part (I’m looking at you, sun worshipers), city smog and bad habits such as smoking. Cupcakes and donuts and sugary sweet fabulousness will also destroy the collagen and elastin in your skin. How UNFAIR is that? Even sleeping dominantly on one side can do damage. And happy birthday to…wrinkles. The older you get, the more collagen you lose and THAT makes things sad and that can cause lines and wrinkles. Boo.