Like most “knowledge workers,” I spend a lot of time sitting. This is made painfully clear at the end of work days when I move stiff muscles up and out of the building, onto the streets and sidewalks of Crystal City.

A standing desk and an office to stand in has improved this a little. But I still get into my rut, which is too much time on my behind and too little time on my feet.

Of course, those of us who wax rhapsodic about standing desks might sing a new song if we were street cleaners, baristas, or letter-carriers. Too much sitting is a problem of affluence, and that’s something we knowledge workers shouldn’t forget.

Still, I regularly remind myself of the power of movement. Even a quick stroll down the hall for a glass of water can rejigger brain cells. This is also a good time to be thankful for … a job that lets me sit down.