<human>:  How does peer pressure affect adolescents in school?
<bot>: Peer pressure can have a significant effect on adolescents in school, both positively and negatively. In positive scenarios, groups of friends can encourage and support each other to strive for excellence, helping them achieve better grades and encourage positive behaviours. On the other hand, negative peer pressure, such as trying to fit in with the ‘in’ crowd, can lead to self-doubt and risky behaviours, such as substance abuse, skipping school, and negative academic performance.