A study similar in hypothesis to Eply and Schroder's published in Social Psychological & Personality Science asked participants to smile, make eye contact and chatwith their cashier.

一项类似于埃佩里和施罗德在《社会心理学与人格科学》上发表的假说的研究要求参与者微笑，与收银员进行眼神交流和聊天。

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Here's what hard science reveals about eye contact: We know that a typical infant will instinctively gaze into its mother's eyes, and she will look back.

以下是自然科学对眼神交流的揭示：我们知道，一个典型的婴儿会本能地凝视母亲的眼睛，而母亲也会回以注视。

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Medieval scholars were particularly fascinated by the science of optics and invented eye glasses partly as a result of their studies using lenses to determine the nature of light and the physics of sight.

FORBES: Connect

Two recent studies caught my eye, because they highlight some actual good science in trying to adapt two longstanding, ancient practices Yoga and Tai Chi into the modern era so they can be used for practical medical purposes.

FORBES: Are Yoga and Tai Chi Good Candidates For Physical Therapy?

But if players could be persuaded to accept Dr Fefferman's watchful eye (and many might welcome the idea that they were helping medical science), other research suggests that the results could be realistic.

ECONOMIST: Epidemiology