Can positive emotions shrink cancer tumors?

Artificially activating the “reward system” in the brains of mice with two types of cancer led to a dramatic reduction in the size of their tumors, according to authors of a study conducted at the Technion-Israel Institute of Technology.

“The relationship between a person’s emotional state and cancer has been demonstrated in the past, but mainly in relation to negative feelings such as stress and depression and without a physiological map of the action mechanism,” said Assoc. Prof. Asya Rolls of the Technion Rappaport Faculty of Medicine, who supervised the study.

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