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How to Stop Sleeping With Your Smartphone

The last few years have been tough on U.S. workers, even those lucky enough to have kept their jobs. While layoffs squeezed more profits out of each remaining employee, vacation time dropped and job stress increased.

Leslie A. Perlow, a Harvard Business School professor, thinks she's found a way to give American workers their lives back. In her new book, "Sleeping With Your Smartphone: How to Break the 24/7 Habit and Change the Way You Work," Perlow chronicles her experiments at Boston Consulting Group. There, she found ways to get extreme workaholics to take more time for themselves -- without, she insists, hurting their work output.