Empty Bladders facts

While investigating facts about Full And Empty Bladders and Empty Wine Bladders, I found out little known, but curios details like:

While sitting down while peeing is getting more and more popular, it's also good and healthy for men. It helps emptying the bladder, and thus can prevent bladder stones and urinary tract infections. Claims that it could prevent prostate problems however are yet to be verified.

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The law of urination, it states that all mammals take roughly 21 seconds to empty their bladders regardless of size

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In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what happened to empress dowager in empress ki. Here are 16 of the best facts about Bladders That Don't Empty and Empty Your Bladder I managed to collect.

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1. Low gravity makes it difficult to tell if your bladder is full, because the bladder’s stretch receptor nerves don’t feel the weight of the liquid. Astronauts are trained to empty their bladders every two hours because of this.

2. Japanese airline, All Nippon Airways in an effort to save costs asked passengers to visit the lavatory before boarding because empty bladders means less weight carried.

3. Almost all mammals take the same amount of time to pee. The "Universal Law of Urination," as scientists call it, says that an African elephant will empty its 42 gallon bladder in nearly the same time that a Great Dane dog will empty its 0.4 gallon bladder. (Around 20 seconds)

4. The Queen's guards "faint to attention". When fainting, they can't sway left or right, can't drop their rifles, and can't extend their hands to break their fall. Also, should they need to empty their bladders, their dark trousers will cover it for them.

5. An elephant's bladder volume averages 160L or 42 gallons, but they hold to Hu's Urination Law, which states that mammals larger than 2.2 pounds take an average of 20 seconds to empty their bladders.

6. Almost all mammals take the same amount of time to pee. The "Universal Law of Urination", as dubbed by science, says that an african elephant will empty its 42 gallon bladder in nearly the same amount of time as a Great Dane dog will empty its .4 gallon bladder. (Around 21 seconds)

7. The Law of Urination. All mammals weighing more than 2.2 pounds (a kilogram) empty their full bladders in about 20 seconds.

8. Urinating while sitting allows elderly men to empty their bladder better than in the standing position.

9. Researchers won the 2015 Ig Nobel prize in Physics for "testing the biological principle that nearly all mammals empty their bladders in about 21 seconds (plus or minus 13 seconds)"

What is true about empty bladders?

You can easily fact check it by examining the linked well-known sources.

All mammals empty their full bladder in about 20 seconds regardless of the size of the animal or bladder in question

Almost all mammals above 3kg take about 21 seconds to empty their full bladders - source

There is a Law called The Urination Law, that says all mammals empty their bladders over the same duration. - source

There is a Law of Urination, stating all mammals weighing more than 2.2 pounds (approx. 1 kg.) take about 20 seconds to fully empty their bladders.