Our group studies, designs, builds, and tests ways to help people make decisions about their health. We want to help people make good health decisions that are informed by the best available medical evidence and align with what matters to the person or people affected by the decision. This can be hard to do for lots of reasons, including complicated statistics, decisions that are emotionally difficult, and short clinical visits. Electronic decision support tools can help if they are well-designed and easy to access and use. We study how to best adapt tools to the people who will use them and then apply what we learn.