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An accountant who fills out spreadsheets at the beach, a dog groomer who always has time for one more client, a basketball player who shoots free throws to the point of exhaustion.
Every profession has its share of hard chargers and overachievers. But for some workers—perhaps more than ever in our always-on, always-connected world—the drive to send one more email, clip one more poodle, sink one more shot becomes all-consuming.
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