One thing that is almost NEVER covered on teacher training courses is the importance of personal health and suitable routines that maximise energy levels. Good sleep, good diet and good mental health are all extremely important for the modern practitioner to function optimally. A teacher with such credentials as a master's degree or even a PhD in education from a top university will soon find themselves scuppered when turning up to school exhausted, rushed or feeling overwhelmed. Your personal biochemistry and physiology will affect your performance in the classroom to an even greater extent than your knowledge of pedagogy.