Sometimes, a cell does not stop dividing once it reaches crisis.

The goal is to deliberately force cancers back to the stage where their cells stopped dividing.

It seemed to make such cells stop dividing altogether.

The anti-sense approach seemed to indicate that without Oct-3, the cells simply stopped growing.

But when an organ, for example, reaches a characteristic size, the cells suddenly stop reproducing and growing.

Cancer happens when cells go crazy and don't stop multiplying.

But why do our cells stop producing melanin as we age?

Within 72 hours, the cells had stopped growing and were starting to die.

Without changing input, these cells would otherwise stop generating output.

When they run out, usually after 20 to 100 cell doublings, the cells stop dividing and start to die.