My mother is 68 but is frequently mistaken for my sister, which is mortifying for me, but always puts a spring in her step.
I think it’s a combination of good genes (I resemble my father so not holding out much hope there), good luck, and iron discipline.
She’s never smoked, never drank alcohol, and barely has any salt or sugar. No sunbathing (although she doesn’t do sunscreen either) and no caffeine. Daily weight bearing exercise - she gardens obsessively. She’s a size 12 so not skinny, but has excellent posture.
She swears by minimal make-up, which she removes with baby oil and a damp flannel. That’s literally her entire skincare regime other than washing with soap when in the shower. She does have an expensive hairdresser she sees frequently, and her hair is dyed.
A few things that have definitely aged me, but which she has dodged:
She has never plucked her eyebrows so they’re full and natural.
She’s never worked shifts or long hours or suffered any big work stress.
She’s always had an excellent diet because she’s a really great cook.
She’s always had great health and Bupa healthcare.
She’s never worried about her children’s welfare - we never gave her a moment’s trouble!
No worries about money.