Median salary: $55,270
Job growth expected through 2020: 7 percent
"Police officer is an obviously stressful job. You never know what you're facing on any given day," Lee said.
And, it's one of those jobs where it toggles between periods of complete calm and extremely high stress, which is very unhealthy.
"You're never not on alert. You're always on high alert. There's no such thing as relaxed—you're just waiting for the next thing to happen," Lee said.