Name: なぜ私たちは飛行機の中でおならをするのか？ (Why Do We Fart More on Planes?)
Uploaded: 2021-01-14T05:42:19.000Z
Duration: 2 min 38 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

程度の副詞

Today on "D News," we're focusing entirely

We're going to talk about how your gastrointestinal tract

behaves in an altered pressure environment-- airplane farts.

Her, frequent flyers, Trace here for "D News."

When food makes it through the small intestine

and enters the large intestine as an undigested mass,

the bacteria living inside of you go to town on it.

As they digest the food you didn't absorb,

they release gases sort of like yeast in bread.

A study in the New Zealand Medical Journal

sniffed out the truth about flatulence on airplanes.

The average person farts about a dozen times a day,

but the volume of your gas will vary depending

on the air pressure you're living in, they say.

experiencing the air pressure of all of that air above us.

It's roughly 14.7 pounds per square inch, or PSI.

Our bodies evolved to think that 14.7 PSI is normal.

At altitude, airplanes have cabin pressures

so that we don't have to wear masks to get oxygen.

but it's usually around 11 PSI, basically

the pressure of about 7,000 feet above sea level.

The gases in your body expand in response to the lower pressure.

This includes the gas in your large intestine,

and then boom, more farts, or so it seems.

They're less dense, if that makes you feel any better.

The study goes on to suggest solutions for farting on high,

mainly you should filter them out, using charcoal.

Charcoal is essential for Brita water filters,

but it can also be used to filter the air.

If charcoal was introduced into the seats,

the researchers say, it would go a long way

Holding it in can cause stress, it can create physical pain,

Letting it go might make you an airplane pariah,

Tell us below, and subscribe for more videos.

You can also sniff us out on Facebook, Google+, or Twitter.

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なぜ私たちは飛行機の中でおならをするのか？ (Why Do We Fart More on Planes?)

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