There are a lot of things to think about before you join a study.

Benefits

• You will see a health care provider during the study. But you should still see your own doctor for routine medical care.
• You take an active role in your own future health.
• You may lower your chance of getting cancer.
• You will have the chance to help your children and others who may get cancer in the future.

Risks

• The medicines or vitamins you take may have side effects.
• The medicines or vitamins you take may not work as well as proven ways to lower your chances of getting cancer.
• You may not lower your chances of getting cancer.

Costs and Time

• Research studies have costs. And health insurance does not always pay for all your costs in a study. So ask your doctor, nurse, or social worker about these costs before you decide to join.
• The study may take some of your time.