I read a few studies that came to that conclusion a few years ago. I’d love to provide the source, but I have lost the ability to find anything remotely historical with any of the search engines in the last year or so.

As far as the tech angle is concerned look up Kurzgesagt’s video on life extension tech, they have a few, but the one that discusses senescent cells is the most important. Senolyitc drugs have been on the market for a year or two now, so we have a way of preventing cancer, which is the current disease that takes out most people, with a side benefit of forcing new cell growth.