Why do we scream when in pain
There is the functional aspect of alerting the other members of the tribe that we are hurt and need help and that there is also a possibility of danger to them as well from whatever is making us scream (bear, leopard, snake, etc.) but there is another aspect as well, which I discovered during one of my episodes.
I have a chronic pain condition called Fabry's disease (www.fabry.org if you're interested in the specifics) and before it was diagnosed I would have episodes of extreme pain in my joints lasting anywhere from a few hours to two weeks one time. And during one of those episodes I realized that for those brief seconds that I was howling and crying from the throbbing agony in my hands, my brain wasn't focusing on the pain.
Pain is intolerable to the mind, by design. Things that are damaging to you hurt. If something hurts, you stop doing it. Thus you avoid damaging your body before you have a chance to reproduce. Evolution at work.
However, if you're in a situation where you are experiencing pain and cannot stop it, it's like a massive noise in your head that you can't turn off. Your mind freaks out and, by screaming or crying, makes a bigger noise in your head than the pain does. I know that's a little vague but it's the best way I can put it.
For the gratification of the superior being who is inflicting the blinding agony upon the HUMAN Mammilian Creature -
Release & primal cry of assistance/help.
cause it hurts ( the real ? is why we jump for joy )
In part, it is the bodies way to alert us that there is something wrong or about to go wrong.
I think it's a reaction to help sooth the pain.
we scream to make us our body realise that we are suffering through pain or something has went wrong which hurts our body.and causes us to scream.
good question..what I really want to know is why do we cry when we're happy and when we're sad.
Its just a reaction to pain.