Its purpose is to build and maintain bone and muscle mass, both of which shrink with age.

com, predicts that the recession will shrink America's economy by

But at a time when the American factory seems to be a shrinking presence, and when good manufacturing jobs have vanished, perhaps never to return, there is something deeply troubling about this dilution of American craftsmanship.

Manufacturing's shrinking presence undoubtedly helps explain the decline in craftsmanship, if only because many of the nation's assembly line workers were skilled in craft work, if not on the job then in their spare time

They have stagnant (蕭條的) or shrinking markets for goods and services.