Smoking Rates Historically Low, but Other Cancer-related Behaviors Need Improvement The American Cancer Society couldn’t do what we do without the support of our partners. Learn more about these partnerships and how you too can join us in our mission to save lives, celebrate lives, and lead the fight for a world without cancer. At the American Cancer Society, we’re on a mission to free the world from cancer. Until we do, we’ll be funding and conducting research, sharing expert information, supporting patients, and spreading the word about prevention. All so you can live longer — and better.