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Simultaneously become hungry and grossed out.

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Kelly Reynolds, PhD, at the University of Arizona, [told BuzzFeed Health](%E2%80%9Chttps://www.buzzfeed.com/carolinekee/swimming-pools-are-germ-cocktails?utm_term=.wkOza7j2l#.hfXpORo1E%E2%80%9D) "In a typical busy public pool or water park, there are several pounds of feaces shed in the water by the end of the day". This may seem drastic but it is actually shed from individual's bodies in tiny residual amounts.

Public pools can contain several pounds of poop at the end of a busy day.

Your feet have over [250,000 sweat glands](http://www.ipfh.org/foot-conditions/foot-conditions-a-z/foot-odor/causes-of-foot-odor) which means wearing socks makes it a breeding ground for fungi and bacteria.

Fungi and bacteria lurk between our toenails and the skin beneath them.

The second man to moonwalk was the first to [moonpee](http://news.nationalgeographic.com/news/2009/07/090716-moon-landing-buzz-aldrin-pee.html).

The first man to urinate on the moon was Buzz Aldrin.

The full genetic makeup of the bacteria can be found [here](https://www.ncbi.nlm.nih.gov/pubmed/18319473).

In 2008 scientists discovered a new species of bacteria that lives in hairspray.

Roman poet, Catullus, wrote the verse "_Your Teeth! : to Egnatius_" where he criticised Egnatius for his white teeth and accused him of being "full of piss". Also, [in ancient Rome](http://www.smithsonianmag.com/science-nature/from-gunpowder-to-teeth-whitener-the-science-behind-historic-uses-of-urine-442390/) containers were left out for the public to collect urine, this was then used to clean clothes.

The Romans cleaned and whitened their teeth with urine.

The bone is called the baculum, and [may have disappeared](http://rspb.royalsocietypublishing.org/content/283/1844/20161736) when our species became monogamous.

Human penises might have once had a penis bone.

There are two types of face mites, the [_Demodex folliculorum_](https://www.ncbi.nlm.nih.gov/pubmed/16033750), and the [_Demodex brevis_](http://eol.org/pages/10481655/details). Both are harmless unless there's a severe infestation.

There are probably tiny mites living on your skin.

In a paper published in [_Allergy_](http://onlinelibrary.wiley.com/doi/10.1111/j.1398-9995.2005.00941.x/full) in 2006, a team from the University of Manchester said that bedding is “an ideal fungal culture medium.”

Adults may produce up to 100 litres of sweat in bed every year.

Sometimes, the [chemicals in saliva can crystalise](http://www.nhs.uk/conditions/salivary-gland-stones/pages/introduction.aspx) and form a tiny stone that can block saliva from entering the mouth.

You can get salivary gland stones similar to kidney stones.

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Choose A Comfort Food And Get A Super Gross Fact

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