>>512016472 (OP)They dont, for the most part, its your diet.
I knew a girl who was beat to fucking death ugly, her parents where smoke shows.
Her diet was trashy greasy food, pizza's and all sorts of shit, so she was fat and ugly as sin, then her parents became health freaks, had a second daughter and she grew up to be beautiful, all she ate was veggies.
Same goes for a lot of people, when I got away from my parents as a kid I lost weight and my acne cleared up, its diet.
Diet can really fuck you, and if you eat the shit for to long, your stuck.