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It doesn't pay to be smart and ignorance really is bliss if you want a long

It doesn't pay to be smart andignorancereally is bliss if you want a long life -- at least if you're a fly, according to new research by a Swiss university.  Scientists Tadeusz Kawecki and Joep Burger at the University of Lausanne said Wednesday they had discovered a "negative correlation between an improvement in a fly's mental capacity and its longevity".  As part of their research project, the results of which are published in the journal Evolution, they divided into two a group of flies from the Basel region of northwestern Switzerland.  One half was left in a natural state while the other had its intelligence boosted by Pavlovian methods, such as associating smell and taste with particular food or experiences.  These methods led to flies which clearly learned better and remembered things for longer.
 
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