Talk:Jiku Jiku no Mi/@comment-3517850-20121130092221/@comment-3387274-20121130130155

Ok, here's the fact; All cells in a body only multiply a set number times, then self destruct. because the DNA can become corrupted, this failsafe stops them from lasting long enough to damage anything, ie, by destroying them before hand. Cancer is what happens when they're corrupt enough the self destruct fails, so they just keep multiplying and becoming increasingly garbled about what they do.

Stem cells have no bearing on it at all, as they are merely base cells that can evolve into any other type of cell. the theory is we could use them to grow replacement organs or other bits which match up to their intended owners, rather than dodgy transplanting.