生物学家和心理学家都知道光线影响情绪，但是弗吉尼亚大学的一项新的研究表明，光线同样在调节恐惧和焦虑方面起着重要的作用。
Biologists and psychologists know that light affects mood, but a new University of Virginia study indicates that light may also play a role in modulating fear and anxiety.
情绪调节是当今情绪心理学的研究热点。
Emotion regulation is an emerging hot field of emotion psychology research.
乐观是积极心理学重要的研究内容，有助于调节个体的心理、生理健康水平，对其研究具有重要的理论与实践价值。
Optimism is an important topic within positive psychology, which facilitates adjusting individual's psychological and physical health level, and therefore has significant academic and practical value.
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