The American Cancer Society (ACS) is the nationwide, community-based, voluntary health organization dedicated to eliminating cancer as a major health problem by preventing cancer, saving lives, and diminishing suffering from cancer, through research, education, advocacy, and service. For over 100 years, the ACS has worked relentlessly to save lives and create a world with less cancer. Together with millions of our supporters worldwide, we help people stay well and get well, find cures, and fight back against cancer.