Why does tear come when we try to think something about emotions or we get emotional?

Question

shubhamsrg · Answer

its a sort of natural emotional pain killer i'd say

mathslover · Answer

Yea but how does it works ? @shubhamsrg ?

mathslover · Answer

Any much physical mechanism involved? or should I ask this in chemistry group.

shubhamsrg · Answer

am sorry my bio is really weak..why dont you google over ?

dls · Answer

there is a hormone..specifically adrenocorticotropic hormone(generally related with stress feelings,emotion and stuff)...This, paired with increased mucosal secretion during crying, could lead to a theory that crying is a mechanism developed in humans to dispose of this stress hormone when levels grow too high.

dls · Answer

also this might be helpful http://www.scienceforums.net/topic/61335-why-do-emotions-lead-to-tears/