Older people who engage in a lot of social interactions stay young for their chronological age, argues John Rowe, a professor of medicine and geriatrics at the Mount Sinai School of Medicine in New York.

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The deal represents a victory for John Rowe, CEO of Exelon and longest-serving utility CEO in the country, according to AP.

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"There haven't been any peaceful times since I've been a CEO, " says John Rowe, chief executive of Chicago-based Exelon, who has been running electric utilities since 1984.

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