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Elementary school teacher

Worst
Teaching younger children can be hard on the body. Grade-school teachers have high rates of back pain because they spend so much time on their feet, says Dr. Bautch.

What's more, teachers may need to constantly tie shoes and pick up toys and books off of the floor.

If you have rheumatoid arthritis and want to teach, aim to instruct slightly older students to avoid the bending and lifting that's more common with younger children.

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