How does my body wake me up at night to pee?

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How does my body wake me up at night to pee?

In: Biology

When your bladder becomes full it sends signals to your brain that basically create the sensation of needing to pee. As you grow through infancy to childhood, you gain more and more control over your bladder. It becomes more voluntary than involuntary. Also as a child, you are conditioned to go in a bathroom and to hold it elsewhere.