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There's a Reason Why It Smells Extra Gross If You Fart in the Shower

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No, it’s not just you: Farts really do smell worse when you let one rip while taking a steamy shower. But it’s not like water contains magical properties that make flatulence more potent, right? So what gives?

As Hank Green explains in SciShow’s latest video, part of the reason for the extra-noxious fumes is simply that you’re stuck in an enclosed space, so your butt blasts have nowhere to migrate. Plus, you’re not wearing clothing to absorb or lock the smell in.

That said, the bathroom’s humidity probably also plays a part, as research shows that water vapor in the air can actually enhance your sense of smell. Scientists don’t know why exactly this is, but one possibility is that “the water vapor helps the molecules that make up the smell interact with receptors in your nose,” Green explains. Another theory is that the gas particles bind to the water vapor, as if the air were a sponge for your fart molecules. This allows it to hold more of the stench than plain old dry air.

Either way, the result is a shower experience that doesn't exactly make you feel squeaky clean. Learn more smelly facts about shower farts by watching the video below.

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Why You Should Never Flush Dental Floss Down the Toilet
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Dental floss may be good for our teeth, but it’s bad for our sewer systems—which is why you should never flush the stringy product down the toilet.

Home toilets are designed with our convenience and hygiene in mind, but some people have taken to using them as de facto trash cans, flushing wet wipes, paper towels, feminine products, and other items. While gone from your bathroom in the blink of an eye, these waste products don’t just disappear into some magical abyss: They end up mucking up our pipes and pumps, causing problems at wastewater treatment plants and, in some extreme cases, merging with congealed oils, grease, fat, and waste to form noxious blobs called fatbergs.

Meanwhile, some wastewater treatment plant employees claim to have discovered everything from baseballs to cash to underwear—indicating that people are flushing far more than just household and sanitary products.

Compared to the objects above, dental floss—which is made from thin strands of nylon or Teflon—seems like it should be the least of any sewage worker’s concerns. And as you ready for bed, it’s probably far easier to toss your floss into the toilet than to remember to regularly empty the tiny trash can under your sink.

But since dental floss isn’t biodegradable, it doesn’t dissolve in its watery grave. Instead, it can combine with clumps of hair, toilet paper, wipes, sanitary products, and other gross stuff to form large clumps that clog sewers and pumps, sanitary companies told HuffPost. These blobs can also combine with tree roots and grease, cause sewage spills, and harm the motors in septic systems.

These instances aren't just inconvenient, they're also costly, as they result "in the need for local agencies that own and operate sewer systems to spend more money on maintenance to keep the sewers and pumps clear,” a spokesperson for the Sanitation Districts of Los Angeles County told HuffPost.

We’re not saying you shouldn’t floss regularly, but from here on out, the only things you should be flushing down the toilet are human waste and toilet paper.

For a clear idea of what other kinds of things shouldn’t be going down our drains, check out the video below, which was created by the City of Spokane Department of Wastewater Management and shared in partnership with the Water Environment Federation.

[h/t The Huffington Post]

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A Simple Way to Prevent Bed Bugs: Do Your Laundry While on Vacation
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Bed bugs are perhaps nature's worst house guests. Not only do they, y'know, feed on your blood while you sleep, but the critters also mysteriously sneak their way into our abodes without warning, only to turn around and invite all their friends over for a slumber party. Since they won't be dissuaded by an empty fridge or an expired HBO subscription, what steps can one take to ensure their home stays free of these dreaded visitors?

For starters, do your laundry while traveling, according to a new study spotted by Gizmodo. Published in the journal Scientific Reports, its authors found that bed bugs are twice as likely to convene on and inside tote bags with dirty clothes as those containing clean clothes. They discovered this after creating a mock bedroom with cotton laundry bags—one filled with "dirty" worn clothing, the other with clean items—and observing which of the two a cageful of unleashed bed bugs preferred.

Researchers know that bed bug populations have surged around the world thanks in part to the rise of cheap air travel. They also have theorized that they're attracted to human scent, which can linger on clothing for at least a few days. Still, they didn't quite know how, exactly, the critters make the jump from the outside world and into our abodes—especially since these insects are relatively sedentary and rarely leave their feeding places. These new findings suggest that the bugs could be stowing away in attractive-smelling suitcases—which after traveling through hotels, airports, and taxis, end up right back in our bedrooms.

Since some bugs, like mosquitos, are attracted to carbon dioxide (it indicates the exhalation of a nearby animal or human—a.k.a. a food source), researchers checked to see if increases of the gas made bed bugs more or less likely to congregate on the dirty laundry bags. This ended up prompting foraging behavior, but the insects weren't any more prone to hanging out on the soiled clothing heap than they were before. 

Keeping your luggage free of bed bugs while traveling can be relatively simple, study author William Hentley, an entomologist at the UK's University of Sheffield, told Science. Since not everyone has ready access to a washer and dryer on vacation, avoid the bugs in the first place by placing your suitcase atop the metal luggage racks commonly found in hotel rooms, even if you've already given the room a precautionary sweep. (Bed bugs can't climb up smooth surfaces.) If your room is sans rack, seal your dirty clothes inside an airtight bag to keep the insects from getting a good whiff, or wrap up your entire suitcase if it's frequently been home to unwashed garments in the past.

That said, not all is lost if you arrive home from a long vacation with a bag full of well-worn outfits. Take your clothes immediately to a washer/dryer and run them through a hot cycle. That should be enough to kill invading bed bugs before they've even had the chance to learn how comfortable your couch is.

[h/t Gizmodo]

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