Salt May be the Key to Happiness
Physiologist Alan Johnson of the University of Iowa has discovered that salt intake may be linked to happiness. By depriving rats of salt, Johnson observed rats had less pleasure and desire to perform daily activities, such as pushing a bar to release sugar water. Once the rats were given salt, they became "happy" again. National Geographic explains:
He points to one study of people with chronic fatigue syndrome. Many of the patients were found to have reduced their sodium intake for health reasons. Increasing sodium in their diets alleviated many of the patients' symptoms.
Most people get more salt than the need in their diets, and there is a link between salt and heart disease, but Johnson's findings are interesting.
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Posted by Jennifer Lance at April 16, 2009 1:25 AM
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