Is there any premise, theory or scientific guess, why H2O could trigger the process of human urination, biochemically, &/or neurologically?
From my extrapolated research, especially hundreds of my students (age 8 to 16), and from worldwide on-line surveys, it appears there are literally millions of adults & kids, ages "8 to 88", around the world, all races, all ages, all economic background, and I believe crossing centuries, who have asked this famous question: Why does running water [feeling it, seeing, &/or hearing it run] make me have to "pee", urinate?" What are the answers you received from the urologists, biochemists, neurologists, and even psychologists? What are their combined "premise-s", theories, and even scientific "guesses"?
Are their any scientific journals, dissertations, magazines, papers, or books out there in the worldwide scientific community, that have answered this age-old question?
What do we tell are kids?...Like "Don't bother me with your useless ridiculous questions! Go ask your dad!"
Did you know, the number "#1" most often question asked of NASA and the astronauts?: "How do you go the bathroom when your up in space?" Even one of the new episodes of "Larry, the Cable Guy" had him get fitted into of NASA's newer space toilets!
So my students -- and students from around the globe -- are asking a serious question, and they are expecting a serious answer, besides the usual answer: "At this time we have no answers." So, extrapbulate, theorize, even a scientific "surmise" or a scientific "guess" will do at this time.
Thanks, I and my students love your site.
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I believe some of the seeing/hearing water phenomenon may be a conditioned response, which begin very young. However I can give you a good reason why you need to urinate when you go swimming. There's a phenomenon know as cold-induced diuresis that accounts for this one. When you get into water that's cooler than core body temperatues, your body begins losing heat to the water. Because water is an excellent temperature exchange medium, the process is quite rapid, and your body responds to this by "coring", or redirecting blood away from the surface areas, to conserve heat. The redirected blood causes the pressure to rise in the abdominal and thoracic cavities; this pressure increase causes the release of hormones whcih stimulate the kidneys to increase urine output.
Not exactly the answer you were seeking, but a nice piece of anatomy that your students will love.
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