Seriously, I'm not attempting to be facetious here. Anyone who sits for extended lengths of time, whether writing against a deadline, painting your latest masterpiece, working as a data entry clerk or a financial analyst or customer service rep, you need to find the time to move your butt out of that seat.

A few short weeks ago, I was bending over to pick up something in my closet before setting off to run some errands. As I stood back up with the item in hand, I felt a sharp pain. I went dir...