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Science. Do you feel that you make bad decisions when you are hungry? Now it is scientifically proven that it is so, at least for rats.
When you are hungry hormone Ghrelin is produced in the stomach. Researchers at the University of Gothenburg have found that the hormone affects rats decision-making ability and impulse negative.
"For the first time we have been able to show that this hormone increase, as seen before meals or fasting, affecting the brain to act impulsively and also affects the ability to make rational decisions," says Karolina Skibicka, associate professor and researcher at the Sahlgrenska Academy, in a press release.
Rats were trained by sugar rewards if they performed an action, such as pressing a lever. They could also choose to wait to press to later get a bigger reward. Rats injected with ghrelin chose more often pressing the lever instead of waiting.
Thus, the researchers said that rats with hunger make worse decisions and have less impulse control.