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Don't Do It All, All at Once
...Even if you think the only way you'll ever be able to leave work tonight is by reviewing the marketing report while simultaneously listening to a conference call about the new brand strategy and weighing in on a text-message chain about tomorrow's meeting. The IQs of people distracted by incoming calls and emails can drop by as much as 10 points, write corporate consultants Jones Loflin and Todd Musig in Getting to It: Accomplishing the Important, Handling the Urgent, and Removing the Unnecessary. "That's a larger effect than losing a night's sleep and twice the effect of smoking marijuana."