The Healthy School Environment component of a coordinated school health program addresses the physical and aesthetic surroundings of the school.  It also focuses on the psycho-social climate and culture in a school that maximizes the health of students and staff. Factors that influence the physical environment include the school building and the area surrounding it, any biological or chemical agents that might be detrimental to health, and physical conditions such as temperature, noise, and lighting. The psychological environment includes the interrelated physical, emotional, and social conditions that affect the well-being and productivity of the students and the staff such as: physical and psychological safety, positive interpersonal relationships, recognition of the needs and successes of the individual, and support for building self-esteem in students and staff.