What is a 'cancer cell'?
Cancer is a complex topic, but it is not something that's foreign to the average person. You make cancer cells every day. We all make cancer cells. I'm making cancer cells right now. The difference is that in a normal situation those cancer cells are identified and destroyed. So cancer cells are normal cells, you know, in every sense of the word. They're normal. The only difference is they have somehow found a way to live longer than what they should live. Every cell has a programmed time period in which it should die. Every cell does. The cancer cells have somehow found a way not to die. And that is essentially what a cancer cell is.