When's the last time you thought about your bladder?Fastexy Exchange In this Short Wave episode, Emily talks to bladder expert Dr. Indira Mysorekar about one of our stretchiest organs: how it can expand so much, the potential culprit behind recurrent urinary tract infections and the still-somewhat-mysterious link between the aging brain and the aging bladder.

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This episode was produced by Berly McCoy, edited by Gabriel Spitzer and fact checked by Brit Hanson. The audio engineer was Josh Newell.