Bad Luck Causes Most Cancer, New Study Finds

Mutation, which drives cancer, is actually totally normal. In fact, its the engine of evolution–if not for mutation, our genes wouldn’t make the random changes that once in a while end up giving us a new, important skill–like making enzymes that break down lactose, or resistance to disease. But often, those mutations get out of control. Cells divide and divide until they overpower the useful cells in our body and kill us. That’s what cancer is.

Of course, cancer science is incredibly complicated. Mutations are not the only thing that matter in driving cancer.


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