All of Us is a research program with the goal of advancing precision medicine, which is health care that is based on individuals. Precision medicine’s goal is to be able to tell people the best ways to stay healthy and to find the treatment that will work best if someone does get sick. To get there, the National Institute of Health needs one million or more people. Those who join will share information about their health over time. Researchers will study this data. What they learn could improve health for generations to come. The Institute will share information back with participants over time.