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One theory is that we cry to nonverbally express distress and elicit help from others.

Crying - Wikipedia

en.wikipedia.org/wiki/Crying

Crying is the shedding of tears in response to an emotional state. The act of crying has been ... In Hippocratic and medieval medicine, tears were associated with the bodily .... Spatial perspective...

Why We Cry: The Truth About Tearing Up - WebMD

www.webmd.com/balance/features/why-we-cry-the-truth-about-tearing-up

Oct 30, 2009 ... Why do some people cry so much more or less readily than others? ... of crying may seem obvious and straightforward: You're happy or sad.

Why do we cry? The science of tears | The Independent

www.independent.co.uk/life-style/health-and-families/features/why-do-we-cry-the-science-of-tears-9741287.html

Sep 18, 2014 ... Happy, sad, crocodile or from onions, Dr Nick Knight explains the scientific ... To do this, we are going to use the classic example: the break-up.

Why Do We Cry? - Live Science

www.livescience.com/32476-why-do-we-cry.html

May 10, 2016 ... A teardrop running down the cheek is the ultimate symbol of sadness, but people may also cry because they just cut an onion, or maybe they're ...

www.ask.com/youtube?q=Why Do We Cry When We're Sad?&v=QGdHJSIr1Z0
Apr 18, 2013 ... Click to Subscribe! http://bit.ly/10kWnZ7 TWEET IT - http://clicktotweet.com/8X1ed Why does your face leak when you're sad or emotional?

The Science of Crying | TIME

time.com/4254089/science-crying/

Mar 16, 2016 ...We don't know anything about people who don't cry,” Trimble says now. In fact, there's also a lot scientists don't know—or can't agree on—about people who do cry. ... But crying is more than a symptom of sadness, as Vingerhoets and ... invisibly when we're in love, tears are a signal that others...

What's the story behind crying? Why do we cry and does evolution ...

www.quora.com/Whats-the-story-behind-crying-Why-do-we-cry-and-does-evolution-have-to-do-anything-with-it

Short Answer:Research suggests we don't weep because we are upset (like we might run .... Numerous creatures cry or shout out when they're in pain. In any case, similarly ... did Jesus cry? What stories are really sad and have made you cry?

Why Do We Cry? The Three Different Types Of Tears And Their ...

www.medicaldaily.com/pulse/why-do-we-cry-three-different-types-tears-and-their-physiology-331708

May 1, 2015 ... Here's the science behind why we actually cry every second of our ... These tears can be the onset of sadness, happiness, or tiredness, but why do we cry ... We've been crying since we were babies and will continue to do so ...

Crying Science: Why Do We Shed Tears When We're Sad? (VIDEO ...

www.huffingtonpost.com/2013/02/04/why-do-we-cry-when-were-sad_n_2583885.html

Feb 4, 2013 ... We're all too familiar with tears welling up in our eyes--brought on by stress, sadness, or even laughter. But why exactly does feeling things m...