**5. School-based intervention to prevent and reduce bullying**

The mission of any bullying programs is to prevent bullying before it occurs. However, the research on preventing bullying is still emerging. In the light of increasing prevalence of bullying in schools, schools must improve school climate by emphasizing on strengthening the educational system to reduce the bullying [35]. The school climate is defined as the physical structure, social and emotional environment, including school safety measures, comfortable means, and harmonic relationships between students and school staff [10]. In this context, health and well-being of students should be a priority to the mission of public education.

A research review for bullying prevention programs suggested many practical strategies for bullying prevention and reduction [1, 13, 14, 18, 21–23, 29, 35, 43–58]:

