05/05/2014 09:00 am ET

Why We Can't Sleep And What It's Doing To Our Work

Peter Dazeley via Getty Images

Admit it. You’ve had days at work where it takes a Herculean effort to stay awake and concentrate.

A new study by the Virgin Pulse Institute found that 76% of the U.S. workforce is tired most weekdays. What’s more, 40% of employees (admitted) they’ve dozed off during the day once per month. And it’s not just during the post-lunch lull.

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