04/21/2011 04:42 pm ET Updated Jun 21, 2011

Multitasking: It's Not Just Rude, It's Ruining Your Brain

Is it rude to be constantly checking messages while you're socializing with someone else? That's a matter of opinion. But a professor friend emails to remind me that rudeness is actually the least of the problems with the perpetual multitasking of the smartphone generation

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