In Brief
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Happiness Hormone Helps Memory
The happiness hormone dopamine strengthens long-term memory. This is the result of work by a team headed by Prof. Dr Emrah Düzel from the German Center for Neurodegenerative Diseases and the Otto-von-Guericke University Magdeburg. Test persons between 65 and 75 years of age were given a dopamine precursor substance. They proved to perform better in a memory test than did a comparison group that was given a placebo.