8:17 undergo apoptosis, so there's no chance; 8:20 of them passing that damage on and becoming cancerous. 8:24 And that's actually a really important protective role; 8:26 that apoptosis plays in an adult human, 8:29 or in a human at any stage of their life. 8:33 So it's kind of like a big red button that, 8:38 you know, it's like a self ...