50% of women will have breast cancer cells in their breasts by age 40-50. These are the findings on autopsy when a female dies unexpectantly in a car wreck. However, 50% of all women do not go on to have a full-blown diagnosis of breast cancer. The reason for this is that there are immune mechanisms that weed out cancer cells daily if the immune system is healthy. Also, in order for the single cells to spread they must create their own supply of blood vessels. This is a process known as angiogenesis. Many food compounds prevent angiogenesis and prevent millions of women from having this devastating condition known as breast cancer. While breast exams and mammograms are important, these aid in early detection, not prevention. Prevention is controlled by lifestyle. The World Research Cancer Fund says as much as 70% of cancer is prevented by lifestyle factors.