She has beautiful, well styled dyed hair and a good figure, both of which help her to appear youthful.
She was a very beautiful woman and had she left her face alone would probably have aged looking wonderfully elegant and still beautiful; as it is her face looks ravaged and she definitely doesn't look youthful for her age.
Why do women do this to themselves, or allow someone to do it to them?
Youth goes, nothing wrong with that.
Take care of your health, as she has clearly done, and if you have good genes, you can go on living a happy vibrant life into old age and still be beautiful. It's just a different kind of beauty.