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Why does swimming make you need the toilet?

Question

Why do you always need to go to the toilet when you’re swimming in the sea or in a pool?
Chris, Finchley

Answer

** Definitive **
Name: Donna, Kiddersminster
Qualification: Renal patient
Answer: It’s because the pressure of the water on your body forces the liquid out of your bladder and makes you want to go to the toilet.

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