Statistically, the people least likely to develop cancer are those who maintain a combination of low-risk lifestyle factors and favorable genetics. Demographic groups that follow a traditional "Blue Zone" lifestyle—characterized by a plant-heavy diet (rich in legumes, whole grains, and antioxidants), regular low-intensity physical activity, and strong social connections—show the lowest incidence rates. This includes populations like the Seventh-day Adventists in California or residents of rural Japan and the Mediterranean. From a biological standpoint, younger individuals have a significantly lower risk, as cancer is primarily a disease of aging where cellular mutations accumulate over time. Those with high socioeconomic status often have lower mortality rates due to better access to preventive screenings (like mammograms and colonoscopies) and early detection. Conversely, the "ideal" low-risk profile is a non-smoker who maintains a healthy BMI, avoids excessive alcohol, uses sun protection, and has been vaccinated against cancer-causing viruses like HPV and Hepatitis B. While genetics play a role, the World Health Organization notes that up to 50% of cancers are preventable through these specific lifestyle modifications.