In this week’s Keeping Kids Healthy column by UTMB Drs. Sally Robinson and Keith Bly: In children, the DNA damage that starts the formation of a cancer is not typically caused by any identifiable cause or lifestyle habit such as smoking. Rather, it is more often a random mistake in the DNA instructions of cells that are rapidly multiplying during the normal growth process of children. This partly explains why some of the most common cancers in children are of the blood, brain and bones.