Well your body is affect by leukemia because once it starts taking out the white blood cells your body becomes weaker because there is nothing to fight off sickness so there really is no part of your body that leukemia does not effect.
The circulatory system delivers oxygen and nutrients to cells and takes away wastes.
They are asparagus, eggs and I believe beets. If I am correct.
Prevention is important for ones health status because if someone is not participating in a certain act it cannot harm or do good to them .