Cancer is a group of potentially deadly diseases that cause cells in the body to change and grow out of control. Cancer can occur at literally any site of your body and if not detected can invade and destroy other parts of the body. Currently there is no cure for this pervasive disease but there are treatments that can cause it to go into remission. Prevention is your best defense against cancer. Knowing your risk factors and getting regular screenings can detect precancerous cells as well as catch cancer early, when it is easier to treat. Do you know your risk? Take this quiz to test your knowledge about cancer risk.