People enlisted in the military have the most stressful jobs in 2013, a report produced by CareerCast.com has said.

Soldiers' lives are always at risk, but military officers, firefighters and pilots also are responsible for the well being of others. No task could score higher on the stress scale's metric than being responsible for other people's lives.

Travel, working in the public eye, physical demand and danger also are high for military personnel, who also face a growing challenge of finding work when their service time ends.

"Among civilian careers, firefighter and pilot have the highest stress rankings," says Tony Lee, publisher at CareerCast.

"Not everyone is cut out for a career that involves running into burning buildings and fighting forest fires, or handling an airliner in terrible weather," he added.

Although not a dangerous career, public relations executives need to be able to think and act quickly under stress. The profession lives in the public eye, and it's also one of the professions attracting the most college students, which makes landing and keeping a good job that much more difficult.

The criteria used by CareerCast.com researchers to determine the most and least stressful jobs include 21 different job demands that invoke stress. Each demand was assigned a range of points, and a high score was given if the demand was a major part of the job, while fewer points were given if the demand wasn't normally required.