Why do we cry when we laugh too hard? We cry when we're sad but why do we cry when we're overjoyed by something?

Being sad and happy are two complete different thing. But we're also very emotional when we're very happy and very sad. Crying is an intense emotional response. When feelings overwhelm us, they show as tears.
On a research about this question, some said we cry because when we laugh we put pressure on our tear ducts, so it forces the tears to come out. Or in more biological way, tears also accompany the body's return to homeostasis after extreme excitation.

So after a big laughing jag, tears are a sign that the body is returning to normal. I think the most important thing is to enjoy that moment when you laugh so hard you cry. Because it don't happen very often unless it's something really funny.

Source: http://sciencezone12..com

Op...too much science dey spoil tin...ok dis is my own observation.

We cry and laugh because the tin dat was said is funny bt exaggerated, so wen im don dry finish we find ourselves laughin alone just to patronise d joker or clown rather...and u wil agre wit me dat it happens at d end of each laughter.. I rest my case.

quote me anywhere