Saturday, 21 May 2016

human eye - Why do eyes water in response to particular emotions?


It is common for people to experience very moving situations (sad movies, etc) and have a physical reaction to it (such as crying). I am curious about how emotions can physically lead to the act of crying. Why/how does this happen? What is the mechanism?



Answer



When we are sad, our emotions are in an overdrive and the parasympathetic nervous system triggers lacrimation i.e. tears, and we cry.


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