paul, a middle-aged man who was born in the united states, used to be a part-time yoga instructor; however, he just started a new job as a stockbroker in a very fast-paced and stressful office environment. the stress is exacerbated by the fact that paul's boss, mr. limburger, is a micromanager who closely monitors and controls paul's every move while he is at work. what impact is this job change likely to have on paul's body?