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Reuters UK
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Coffee doesn't really perk you up
Chicago Sun-Times
People who wouldn't think of going through a morning without a cup of coffee usually think it helps perk them up. But surprising new research suggests that it only helps bring them back to the normal state they'd be in if they didn't drink any coffee ...
'People become immune to coffee boost', experts believeBBC News
Coffee's Jolt Just an Illusion?U.S. News & World Report
Feeling wired? Don't blame the coffee, says Bristol University studyTimes Online
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