Scientists believe that one of the causes of the obesity epidemic sweeping the US is our sedentary lifestyle. Sedentary means sitting a lot and refers to a person or job that is not very physically active.

This adjective has a specialized meaning when referring to certain types of birds that stay in one area and do not migrate. Sedentary is from French sédentaire, from Old French, from Latin sedentārius, from sedēre "to sit."

Definitions of sedentary

adj requiring sitting or little activity

“forced by illness to lead a sedentary life”
not active physically or mentally

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