Depends on the women and men-I know genetics play a part, but others are right about smoking, sun, drugs, alcohol, all age both men and women a great deal. My mom is in her 70's and looks 50. My dad looks a bit less than his age, but he is balding, which ages guys a lot. My brother is 5 years younger than I am and looks 10-15 years older-he smokes, drinks, misuses drugs, and loves the sun.

Also, supposedly not only does stress and exercise have an effect, but lack of sleep and exposure to the cold affects aging of your skin: http://seniorliving.about.com/od/healthnutrition/a...