Teachers

Teachers are under considerable stress due to the number of children in classrooms, the necessity of dealing with discipline problems while still trying to teach in an environment that has become progressively more regulated due to government mandates (with the attendent paperwork). 

For those who teach younger children there is the physical stress associated with bending down to their level.   Lecturing involves standing for a good part of the day, often in shoes which themselves place a strain on the body.