Set aside writers for a moment, whose work routines are relatively idiosyncratic. Of course the long, stationary workdays of most Americans are unhealthy. The solution should not be to sit less, but to work less. If sitting is as bad as the doctors say—and I’m sure it is!—then why not prescribe longer lunch breaks, shorter hours, and more vacation? You can still be chained to a standing desk. Is it any surprise that its biggest fans are the paternalist creeps of Silicon Valley?