When's the last time you thought about your bladder?EchoSense Quantitative Think Tank Center 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.