Antioxidants and Cancer Prevention: Fact Sheet ¹
(Posted: 01/08/2003, Updated: 07/28/2004) - Antioxidants are substances that may protect cells from the damage caused by unstable molecules known as free radicals. Free radical damage may lead to cancer.

Breast Cancer Prevention Studies ²
(Reviewed: 07/23/2008) - A fact sheet about three clinical trials studying methods of preventing breast cancer. National Cancer Institute Fact Sheet 4.18

Cancer Vaccine Fact Sheet ³
(Posted: 03/27/2003, Updated: 06/08/2006) - Cancer vaccines are intended either to treat existing cancers (therapeutic vaccines) or to prevent the development of cancer (prophylactic vaccines).

COX-2 Inhibitors and Cancer: Questions and Answers ⁴
(Posted: 12/17/2004, Updated: 08/30/2006) - In the Adenoma Prevention with Celecoxib (APC) Trial of more than 2,000 men and women age 30 and older, those on celecoxib were found to have 33 percent to 45 percent fewer new adenomas than those taking a placebo, however those on celecoxib had almost twice the risk of a major cardiovascular event as people on placebo.

Garlic and Cancer Prevention: Questions and Answers ⁵
(Reviewed: 01/22/2008) - A fact sheet that summarizes the results of studies on the consumption of garlic for cancer prevention. National Cancer Institute Fact Sheet 4.22

Human Papillomavirus (HPV) Vaccines: Questions and Answers ⁶
(Reviewed: 09/12/2007) - A fact sheet about human papillomavirus (HPV) vaccines for the prevention of infection with certain types of HPV, which is the major cause of cervical cancer. National Cancer Institute Fact Sheet 4.21

I-131 and Radioactive Fallout: Questions and Answers ⁷
(Posted: 12/11/2002) - Radioactive fallout refers to a variety of airborne radioactive particles that fall to the ground during and following aboveground nuclear weapons tests.

Physical Activity and Cancer: Questions and Answers ⁸
(Updated: 04/23/2008) - Physical activity is any bodily movement produced by skeletal muscles; such movement results in an expenditure of energy.

Prostate Cancer Prevention Trial (PCPT): Questions and Answers ⁹
(Posted: 06/24/2003, Updated: 05/18/2008) - In the Prostate Cancer Prevention Trial (PCPT), 25 percent fewer men taking the drug finasteride developed prostate cancer than men not taking the drug. However, men who developed prostate cancer while taking finasteride were more likely to have high-grade cancers, which can spread quickly even if the tumors are small.

Red Wine and Cancer Prevention: Fact Sheet ¹⁰
(Posted: 11/27/2002) - Red wine is a rich source of biologically active phytochemicals, chemicals found in plants.

Statins and Cancer Prevention: Fact Sheet ¹¹
(Posted: 06/02/2005) - Animal research and ongoing observation of people who take statins suggests that these drugs may lower the risk of certain cancers, including colorectal and skin cancers.

Tea and Cancer Prevention: Fact Sheet ¹²
(Posted: 12/06/2002) - Tea drinking is an ancient tradition dating back 5,000 years in China and India. Long regarded in those cultures as an aid to good health, researchers now are studying tea for possible use in the prevention and treatment of a variety of cancers.

The Study of Tamoxifen and Raloxifene (STAR): Questions and Answers ¹³
(Posted: 04/17/2006, Updated: 06/21/2006) - STAR is a clinical trial designed to see how the drug raloxifene compares with the drug tamoxifen in reducing the incidence of breast cancer in postmenopausal women who are at an increased risk of developing the disease.