"Gabby Williams is eight years old, but looks like a newborn. She is one of only a handful of people across the world who age at an incredibly slow rate, and scientists are trying to figure out why. Once they do, the discovery could help fight Alzheimer's, and even give us an aging 'off switch,' which would give humans the chance to stay the same age... pretty much forever."
Apparently, you scientists have never seen a '70s Sci-fi movie. Stopping the aging process is just one of those things you shouldn't do because it's never going to end well. You know, like making apes super smart, or making machines super smart, or making Kardashians super smart.