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via Lifehacker http://ift.tt/1FnMNGX

They say worrying does you no good, but worrying productively can actually get you through anything—whether it’s asking for a raise or running a big race. “Mental rehearsal” is a technique that athletes, musicians, doctors, soldiers, and even astronauts use to prepare for the worst—and perform at their best. Here’s how to use it.

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