ELI5 Screaming in Pain - Why do we scream to relieve physical pain?

ELI5 Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcast

Why does screaming relieve physical pain? What is going on in the brain when we scream? Plus a bonus question: why do some tennis players grunt when they hit the ball?

... We explain like i'm five!

Thank you to the r/explainlikeimfive community, and specifically the following reddit users whose questions and responses formed the basis of this conversation: needsugar_daddy, tacodelmorte, shamanicrabbit, 2as_ron87, alphawhiskeytangofu, jazzman23uk & madjohnfinn

To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Join us on Facebook:

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... we love hearing from you!