Even nonsmoking bystanders had raised blood levels of the chemical, which is tied to leukemia risk
Cancer of the colon or rectum (colorectal cancer) usually develops slowly, over several years. Excluding skin cancers, colorectal cancer is the third most common cancer in both men and women in the United States and the second leading cause of cancer-related deaths, according to the American Cancer Society (ACS). Still, the death rate from colorectal cancer has been dropping for the last 15 years because of better detection and treatment. Take this simple assessment to learn about your risks for colorectal cancer.