Taking a long lunch seems like a surefire way to get behind in your work, but the practice can actually boost your output when you return, says Josh Davis, director of research at the NeuroLeadership Institute and author of Two Awesome Hours: Science-Based Strategies to Harness Your Best Time and Get Your Most Important Work Done.

"Many of us feel guilty, like we aren’t doing enough, but the idea that we need to work more hours is based on a model that doesn’t fit us," he says.