A new job-stress report by CareerCast.com found that firefighters have the second most-stressful job in the country, exceeded only by those enrolled in the military.

Tony Lee, publisher of CareerCast.com — a free job website — said researchers at the University of Wisconsin–Madison regularly research and update statistics for the report. Researchers use 11 different stress factors to compile data, which includes whether the job has high physical demands, what environmental issues are present, the amount of hazards, risk to life, hiring outlook and more.

Lee said firefighters ranked second on the job stress scale because they take on dangerous and complex fires, often coming in contact with poisonous gases or other hazardous materials for a relatively low salary, at about $45,250 annually.

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