There can be many stressors in the life an instructor. One of the big ones for me is not having enough time to be as fully prepared as I would like. When I walk into a classroom and I don't feel prepared, then I become stressed, and I feel like the class doesn't flow the way I would like it to. We have also experienced some changes to our curriculum recently, and I think this had created some increased stress, for me anyway. This means that even subjects I have taught before now need to be redone to accommodate the new curriculum. What I find helps me de-stress is using guided imagery techniques I have learned, listening to music for a bit, playing the flute and piano, or going for a walk. Getting away from the class preparation for a while clears my head and makes me ready to take on what needs to be done again.