Peer influence refers to the impact that individuals within a social group, often friends or classmates, can have on each other's behaviors, attitudes, and decisions. This influence can be positive, such as encouraging good study habits or participation in sports, or negative, like promoting risky behaviors such as substance use. During adolescence, peer influence is particularly strong as individuals seek acceptance and validation from their peers. This can lead to changes in interests, fashion choices, and even values, as people often want to fit in with their peer group. Understanding peer influence is essential for parents and educators to help guide youth in making healthy choices.