The answer should be Pavlov! Hope this helps.
Aerobic exercise stimulates the heart rate and breathing rate to increase in a way that can be sustained for the exercise session. In contrast, anaerobic ("without oxygen") exercise is activity that causes you to be quickly out of breath, like sprinting or lifting a heavy weight.
C.pump blood more efficiently
Okay. I think that mental health professions could help you achieve your goal of getting over a...nightmare that you've been having.
Hope this helps!