Adults 30 - 65 who have never had cancer are needed to enroll in the American Cancer Society's groundbreaking Cancer Prevention Study 3, which will help researchers determine which genetic, lifestyle and environmental factors do and do not cause cancer. Enrollment takes 30 minutes for a waist measurement and small blood draw. A 45-minute at home survey completes the process. Partipants receive a similar survey every two years for 20 years. The study is completely confidential and anonymous. The life you save might be your grandchild's. visit www.cps3torrance.org to register.