Washing our hands influences how we think, judge and decide. This is what researchers were able to confirm through experiments over the last few years. The Junior Professor for Social and Media Psychology Dr. Kai Kaspar from the University of Cologne has examined how physical cleansing affects us after failure. The result: test subjects who washed their hands after a task were more optimistic than those who did not wash their hands, but it hampered their future performance in the same task domain.
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