Probably some plastic surgery. Not saying it definitely isn't energy manipulation. But she probably can afford plastic surgery and get things touched up.

I can't remember the article exactly, but at the time I was doing a lot of research on how vampirism. Maybe there is some truth in the health effects of consuming blood.

Apparently blood transfusions can help sustain your youth. The problem is blood is so difficult to obtain. I know a lot of "blood beauty banks" are popping up in China, not very legal, but they are there.

If you look at her work she did a lot of stuff in 70s then there are gaps until the 2000's I think someone else younger took up her mantel imo.

Yep.

https://clinicaltrials.gov/ct2/show/NCT02803554?term=young+plasma&rank=2