Personality features and genetic factors correlate with different neuroendocrine and immune responses. Positive emotions have been found to be helpful to alleviating the effects of negative emotions.

研究显示正性和负性情绪会造成不同的神经内分泌和免疫功能变化，个体的人格特征和遗传因素都与这些变化相关，而正性情绪可以明显消除负性情绪的作用。