It took ten yrs. from 35 to 45 for my light brown hair to go completely white. Genetics there. In my 50's saw a lot of changes in skin tone and fine wrinkles. In my 60's wrinkling accelerated and spotty, dry crepey skin appeared. In my 70's just try to stay clean and not poke my eyeball with the mascara wand trying to color the few lashes that are left !!
Spent my youth in hot climes getting as tanned as my fair Scandinavian skin could get. No sun block at that time, and even when it did come on the market was sweated off inside 10 min. playing tennis. 25 yrs. of playing that hobby surely didn't help. OTOH, it kept me fit and helped clear my lungs of smoking. The last 14 yrs. mostly inside; and while I should get 20 min. of sunlight per day, I don't and have no color unless I put it on with a brush.
Mother in her 40's decided she needed to get deeply tanned but did not smoke. Otherwise, she did not spend time outdoors. She had deep wrinkles around her lips and other places by her 50's. Dad smoked from his teens and into his eighties and loved being outsdoors. He was no more wrinkled than mom.
Age, genetics and sunlight can do a "number" on the ol' bod too. After all, people who have never smoked do get "old" looking.
