Researchers at USC have "created baker’s yeast capable of living to 800 in yeast years without apparent side effects."
I well understand that yeast are a long, long way from people.
And I also have seen, all my adult life, early claims of wonderful drugs--including more than few cancer "cures"--not pan out at all.
But still . . . I believe we're going to see some amazing things in biology over the next 20 or 30 years.
(Link courtesy of Mike Sproul.)