Putting in long hours at work doesn’t always mean you’re productive. You’re exhausted and spread thin, and you’re probably miserable to boot. You’re only going through the motions of working. You may get the job done but your output isn’t exactly your best work. Citing a decade’s worth of research, Teresa Amabile and Steven Kramer — authors of The Progress Principle — pointed out: “People are more productive and creative when they have more positive emotions.” Employees shouldn’t rely on…