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Diets and Dieting
Junk food makes you lazy: Study looks at overweight, unmotivated rats
Junk food makes you lazy: Study looks at overweight, unmotivated rats

You know an unhealthy diet can make you fat, but new research suggests it can sap your motivation too. In a study published in the journal Physiology & Behavior, researchers at UCLA found that rats fed a diet low in fat but high in simple sugars and refined flour were not only more obese than rats that had a better diet, but also less willing to work for a reward.  MORE: Medicines and machines, inspired by nature "The obese rats really showed impaired motivation," said Aaron Blaisdell, who studies animal cognition at UCLA, and is the lead author of the study. "It is as if the rat is thinking 'This is too much work.'" For this study, Blaisdell...

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