Or is it just me?
In: Biology
Some of the muscles used for peeing is helping pushing out the urine by increasing the pressure in your abdomen. But when you are yawning the same muscles have to relax to allow your lungs to expand downwards into your abdomen. This means that peeing will slow down or even stop completely. The same muscles is also the reason why you often pee and poop at the same time as the same muscles are used for both. And it also explains why you often take a deep breath as this allows you to only use the muscles for pushing out poop rather then breathing, the pressure from your lungs also help make more pressure in your abdomen.
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