Have you heard of Bryan Johnson?
Here is his YouTube channel -
https://www.youtube.com/@BryanJohnson
He's 46/47 years old and he's invested/investing millions of $ into slowing his ageing process. Eats one meal a day, doesn't drink alcohol, is obsessed about the quality of his sleep and works out like a professional athlete
Atm he's experimenting with gene therapy and stem cell treatment
https://www.youtube.com/watch?v=bax8to_s07Q - This is the video on his stem cell treatment, his treatment is supposed to help increase muscle mass along with other benefits. I'm eager to see if he has beneficial results over the next 12 months
https://www.youtube.com/watch?v=MsVIT_54rMU - The stem cell treatment looks interesting, he's got age related pains in his joints. He went to the Bahamas to have stem cell injections (I think from an 18 year old) into all his joints, the company claims that once it takes effect his age related joint pain should be gone and he'll have much younger joints that won't be full of inflammation
Have you looked into gene therapy and stem cell treatments? Tbh i'm just following this guy on YouTube atm but I do believe that these areas have significant potential for almost every single area of health
i'd also recommend watching what Dana White is going via YouTube, he's become obsessed with his health. Red light therapy, ice baths, saunas etc you name it, he's doing it atm