Cancer is usually seen as a sudden, stunning blow, but in the past 40 years, studies have shown that lifestyle plays a huge role in cancer incidence and mortality. World-renowned experts in disease prevention have listed some lifestyle behaviors that can help us greatly reduce the risk of cancer. Cancer is not as complicated as we might think. Experts recommended people to start with one or two usual lifestyles from the list, and once we insist on it we should continue to make changes according to the list. Improve our lifestyles step by step and we will gain health.