THE feeling is familiar: you are savoring the last of a leisurely Sunday lunch or a long walk in the park when you abruptly realize that your weekend will be over in a matter of hours. In an instant, you are deep in what John Updike called the “chronic sadness of late Sunday afternoon.” As you envision the to-do pile on your desk, the meetings on your calendar, and that trip to Topeka on Tuesday, your mood shifts again, your muscles tense and your head begins to ache.

You have a case of workplace-related stress. You also have plenty of company.