This document discusses occupational hazards and diseases that teachers may face. It notes that teachers often have vocal problems from using their voice as a primary task, and can experience physical issues like cervical spondylitis, back pain, and dermatitis from workload, environment, and tool usage. Consistency of these diseases can affect teacher performance and well-being. The document recommends schools reduce hazards by using technology like microphones, smart boards, and mobile apps to lessen vocal and physical strain on teachers.