Stress in IT Environment

What do you find most stressful at work. Is it workload,role ambiguity, working hours etc.Is there a time you have decided to change from IT field because of stress.How are you guys coping.I’m doing a research on this. Please help by completing the survey below.

http://www.surveymonkey.com/s.aspx?sm=FrckzgHuOeLvyt5LcohfEQ_3d_3d