High school dropout rates have declined since the 1970s but remain a significant problem. Reasons students drop out include low grades, feelings of unsafety, inability to get along with peers, pregnancy, family issues, and substance abuse. Dropping out has negative lifelong consequences, including much lower annual and lifetime earnings, higher rates of unemployment, poverty, poor health, and incarceration. As teachers, addressing the dropout issue will be important to help students graduate and achieve better life outcomes.