So, after a lot of gathering of information, I think I have somewhat nailed down the two (physical) processes that need to be accomplished in order to achieve urinary incontinence.
1. Shrinking of the bladder
2. Atrophy of the sphincter muscles
One will consequently affect the other. This is the simplistic understanding of what's going on, and I don't think it over-simplistic. If anybody can help me understand the mental part that would be great, because I surely don't understand the effects of it.