Basically what we need to do is replace cells in those few areas of the brain that lose cells at a respectable rate, especially neurons, but we don't want to replace them any faster than that -- or not much faster anyway, because replacing them too fast would degrade cognitive function.
U biti, ono što moramo učiniti je zamijeniti stanice u onih nekoliko područja mozga koja gube stanice značajnom brzinom, posebno neurone, ali ne želimo ih zamjenjivati brže od te stope -- ili barem ne puno brže, jer bi prečesta zamjena narušila kognitivne funkcije.