annual study from CareerCast most stressful careers CareerCast.com’s Top 10 most stressful jobs for 2012 stressful ranks fire-fighting study most stressful jobs the seventh most stressful job in the US careercast.com/jobs-rated/10-most-stressful-jobs-2012 2012 report CareerCast in 2012 the seventh most stressful job in the US