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  • Every single day, the human race produces around 70 billion farts - meaning roughly 10 of those are yours!

  • But why doesn't your gas seem half as smelly as those around you?

  • Why do we like the smell of our own farts?

  • Hilarious as it may seem, scientists have actually confirmed the fact that, in blind-smell tests, we truly do find our own smells much more appealing than others.

  • Simply put, the more familiar you are with something, whether it be a song, picture or even a smell, the more likely you are to prefer it.

  • And because the bacterial population in your body producing these smells is completely unique from every other individual, our farts truly have a one-of-a-kind brand that your nose can differentiate.

  • But, from an evolutionary perspective, our reaction of disgust to other people's odor is likely our brains' attempt to prevent us from doing harm to our own bodies

  • specifically interacting with sources of disease.

  • When you think of it, most things that don't smell good, aren't good for you.

  • And the greater the risk of disease, the more intense your response will be.

  • Surprising as it may seem, farts can spread disease.

  • In fact, there are many reported cases of farts spreading Streptococcus pyogenes, a pathogen that can cause tonsillitis, scarlet fever, heart disease and even flesh eating disease.

  • Seriously, the pathogen is expelled as fecal matter or poop particles in the air.

  • Of course, this was a major concern for our ancestors who ran around naked, but for us underwear or pant wearing folks, farts don't pose a real threat.

  • And it's important that we've adapted to like our own odors, so that we can maintain proper hygiene.

  • In the same way, mothers perceive their biological children's poop as less offensive than others, which allows them to take care of them without disgust.

  • Of course, some of you may be thinking “I don't find farts disgusting at all”- and you're not alone.

  • Perception of disgust is a combination of variables like age, gender, culture and even personality.

  • So much so that people who are more anxious or socially conservative are often more sensitive to stink than their adventure seeking friends.

  • The anterior cingulate cortex, which processes surprise, also plays a big role.

  • When we fart we know it, and can anticipate the accompanying smell.

  • But when somebody rips a silent but deadly fart into a crowded room, the brains expectations of reality are smashed by the negative stimulus, making it all seem even more foul.

  • So next time you feel a silent stinker coming on, you might want to give everyone a heads up.

  • Unless of course, you're alone; then you can bask in the glory of your own stench.

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Every single day, the human race produces around 70 billion farts - meaning roughly 10 of those are yours!

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B1 US disease smell disgust pathogen fart poop

Why Do We Like Our Own Farts?

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    彭彥婷 posted on 2015/05/12
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