Family history is one of the most significant risk factors. Individuals who have cancer, colorectal cancer or non-cancerous colon polyps in their family are at higher risk. If an individual has treated for non-cancerous colon polyps or an inflammatory bowel disease, he or she is at an increased risk of developing colorectal cancer. Obviously, people who have been treated for colorectal cancer are also always considered at risk for recurrence. Moreover, women who have had breast, ovarian or uterine cancer are also at an elevated risk. "Diets high in fat and cholesterol have been linked to an increased risk of colorectal cancer" ("An Ounce of Prevention," n. pag.). Diets high in fiber, vegetables, fruits, and calcium-rich foods may protect against colorectal cancer. It is also advisable to drink alcohol only in moderation, to abstain from tobacco use, and to exercise regularly. The exercise regimen need not be particularly vigorous - even moderate physical activity can help to prevent disease. Prevention and early detection are key factors in controlling and curing colorectal cancer. Since most cancers begin as polyps (small, non-cancerous growths inside the colon) individuals should be screened for the presence of polyps. By removing these polyps, people can effectively reduce their risks for colorectal cancer.