The headquarters of Reynolds American in downtown Winston-Salem, N.C.. Starting in January, workers there will no longer be allowed to smoke at their desks. Chris Keane/Reuters/Landov hide caption

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Lynn Good has had many mentors throughout her career — but few of them were women. "So I'm generationally on the early part of the ascent of women into leadership roles," the Duke Energy president and CEO says. Pat Sullivan/AP hide caption

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A worker repairs electrical lines in Plainview, N.Y., after Superstorm Sandy in 2012. A proposed plan to overhaul the state's power grid could help the system better withstand severe weather and enable energy to be stored and managed more efficiently. Bruce Bennett/Getty Images hide caption

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Workplace drug testing for marijuana may need updating in light of changing laws, a case before the Colorado Supreme Court suggests. Kai-Huei Yau/MCT/Landov hide caption

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Tobacco giant Reynolds American is buying Lorillard and acquiring Newport, a popular menthol cigarette. In a shrinking market, Newport is one of the few U.S. brands gaining market share. It is particularly popular among African-American smokers. Justin Sullivan/Getty Images hide caption

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We can all work up a stinky sweat — welders, ballerinas and number-crunchers alike. Would you want to know? emreogan/iStockphoto hide caption

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