Here is an excerpt from an article written by Shawn Achor and Michelle Gielan for Harvard Business Review and the HBR Blog Network. To read the complete article, check out the wealth of free resources, obtain subscription information, and receive HBR email alerts, please click here.

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As constant travelers and parents of a 2-year-old, we sometimes fantasize about how much work we can do when one of us gets on a plane, undistracted by phones, friends, and Finding Nemo. We race to get all our ground work done: packing, going through TSA, doing a last-minute work call, calling each other, then boarding the plane. Then, when we try to have that amazing work session in flight, we get nothing done. Even worse, after refreshing our email or reading the same studies over and over, we are too exhausted when we land to soldier on with the emails that have inevitably still piled up.

Why should flying deplete us? We’re just sitting there doing nothing. Why can’t we be tougher — more resilient and determined in our work – so we can accomplish all of the goals we set for ourselves? Based on our current research, we have come to realize that the problem is not our hectic schedule or the plane travel itself; the problem comes from a misunderstanding of what it means to be resilient, and the resulting impact of overworking.

We often take a militaristic, “tough” approach to resilience and grit. We imagine a Marine slogging through the mud, a boxer going one more round, or a football player picking himself up off the turf for one more play. We believe that the longer we tough it out, the tougher we are, and therefore the more successful we will be. However, this entire conception is scientifically inaccurate.

The very lack of a recovery period is dramatically holding back our collective ability to be resilient and successful. Research has found that there is a direct correlation between lack of recovery and increased incidence of health and safety problems. And lack of recovery — whether by disrupting sleep with thoughts of work or having continuous cognitive arousal by watching our phones — is costing our companies $62 billion a year (that’s billion, not million) in lost productivity.

And just because work stops, it doesn’t mean we are recovering. We “stop” work sometimes at 5PM, but then we spend the night wrestling with solutions to work problems, talking about our work over dinner, and falling asleep thinking about how much work we’ll do tomorrow. In a study released last month, researchers from Norway found that 7.8% of Norwegians have become workaholics. The scientists cite a definition of “workaholism” as “being overly concerned about work, driven by an uncontrollable work motivation, and investing so much time and effort to work that it impairs other important life areas.”

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Here is a direct link to the complete article.

Shawn Achor is New York Times bestselling author of The Happiness Advantage and Before Happiness. His TED talk is one of the most popular, with over 11 million views. He has lectured or researched at over a third of the Fortune 100 and in 50 countries, as well as for the NFL, Pentagon and White House. Shawn is leading a series of courses on “21 Days To Inspire Positive Change” with the Oprah Winfrey Network.

Michelle Gielan, a national CBS News anchor turned UPenn positive psychology researcher, is now the bestselling author of Broadcasting Happiness. She is partnered with Arianna Huffington to research how transformative stories fuel success.