Youth advisory groups (YAGs) are super teams of young people who help scientists understand what is important to people their age. In our study, we wanted to find out how being involved in a YAG benefits young people and improves scientific research. We found that when young people joined a YAG for 1 year, they gained leadership and problem-solving skills. They told us that being in a YAG made them feel their voices were heard and included. They got to share their ideas, influence decision making, and make a difference in scientific research. But it was not always easy. We learned that YAGs face challenges, like not having enough time and difficulty meeting face-to-face. Yet, with some flexibility and supportive scientists, YAGs can succeed. We learned that a small group of thoughtful and committed young people can make a big difference and help make health research better.