This article's title sounds quite click-baity, but it would indeed be interesting to read about these clinics!
The original article is actually behind a paywall on the Wall Street Journal site here:
https://www.wsj.com/articles/longevity- ... r-2b98e773
I found a website that looks like it has the article on it, but I don't know if it's the full article:
https://jacklimpert.com/2023/07/the-lon ... or-100000/