-- Antonia, I agree with your observation. I have 8 sisters. Three of which are older than me. I am now in my mid-50s. Everyone who meets us always think that I am among the younger of the sisters -- even younger than the next to youngest... I feel that our ability to continue estrogen intake is what 'preserves' us to a degree or at least enhances the ability not to age physically. If you add exercise, good diet, and good skincare, you are far ahead of the aging game. Case in point -- My friend, who is post-op, does not care about skin care, diet, no exercise at all and rarely takes her estrogen. I've been asked if she is my older sister and a couple of times if she was an older relative. She is one year younger than me. So I hypothesized that estrogen plays a big role in our youthful looks.