Changes of pupil size reveal our mind

But wait a minute， I’ve seen pictures of asteroids that have all sorts of crazy shapes.Why aren’t they round？Only because they aren’t big enough for gravity to be a determining factor. If an asteroid were to suddenly become as big as a moon， it would indeed rearrange itself gradually into a sphere.

Our pupils， the black holes which let light into the eyes， don’t just help us see， they also signal what’s going on in our minds. Here are 3 pieces of psychological research which show how changes in pupil size reveal many aspects of thought.

1. I’m thinking hard

Research has shown that the harder your brain works， the more your pupils dilate.

2. My brain is overloaded

Research has reported that when participants’ minds were loaded to 125% of their capacity， their pupils constricted.

3. You’re holding my interest

People likely to be interested in anything new， so their pupils will dilate a bit at first， but they’ll only stay dilated if they continue to be interested.

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改變壞習慣

允許自己被壞習慣控制是破壞性行為。一些人可能習慣說話粗魯，一些人習慣對別人的意見充耳不聞，還有一些人習慣拖沓。如果任由這些壞習慣發展，它們會失去控制，變成生活或事業上的巨大障礙。

許多成功人士因改變不想要的習慣而受益。比如，杰克·韋爾奇小時候有嚴重的結巴，成為笑柄。在媽媽的鼓勵下，他客服看了結巴，變成了商業圈的傳奇。

壞習慣很可能讓我們無法實現志向。因此，我們應該警惕自己的壞習慣并不斷努力去改正它們。