Here is another valuable Management Tip of the Day from Harvard Business Review. To sign up for a free subscription to any/all HBR newsletters, please click here.

Research shows that the more hours you work continuously, the greater the toll on your performance.

You can greatly improve your productivity by taking a short nap.

Think taking a nap at work is crazy? Here are three ways to make it happen:

1. Schedule a time. Between 1pm and 3pm is the best time. Mark it in your calendar so you are more likely to take it.

2. Find a quiet place. Close your door and put up a “do not disturb” sign. If you work in a cubicle, look for a conference room, or a local coffee shop or library.

3. Tune out. Turn off your technology and set an alarm for 20 or 30 minutes (longer naps can leave you hazy). Close your eyes and breathe deeply. Even if you don’t fall asleep, this relaxation will ensure you rest.

Today’s Management Tip was adapted from Guide to Managing Stress.

To check it out and join the discussion, please click here.

In my opinion, the definitive source for advice about energy renewal is Tony Schwartz’s Be Excellent at Anything: The Four Keys To Transforming the Way We Work and Live.