Some people get a workout just by going to work. Here are six of the step-liveliest jobs, according to a study commissioned by the American Council on Exercise:

• Mail Carriers take 18,904 steps a day on the job.
• Custodians take 12,991 steps a day on the job.
• Restaurant servers take 10,087 steps a day on the job.
• Nurses take 8,648 steps a day on the job.
• Lawyers take 5,062 steps a day on the job.
• Teachers take 4,726 steps a day on the job.