(funky music)
- Oh, hi.
I'm Ben Boland and I shouldn't be walking here.
This is What The Stuff.
(balls rolling and hitting pins)
You probably heard that old saying about
your body being a temple.
And it is.
I want to be clear about that.
Your body is an astonishing wonderland
capable of amazing things.
It's also filled to the brim with repulsive, disgusting,
just gross stuff.
I hope you're not eating right now.
The older you are, the more likely that your
lustrous lashes are home to demodex mites.
They live off the skin cells and oil on your hair follicles.
And it's a good thing, the mites are usually harmless.
These little jerks are estimated to have colonized more than
80% of eyelashes in people over the age of 60.
Boogers, snot, flegm,
whatever you wanna call it,
there's a reason it exists.
Mucus, you see, is that stringy, sticky fluid
that coats the inside of your nose,
mouth, sinuses, throats, lungs, and G.I. tract.
I don't mean G.I. Joe.
- Body massage.
- Every day, your body makes between
one to two liters of this goo.
Your nose whips up some every 20 minutes.
Don't get me wrong, okay, yeah,
mucus is important.
It protects you from bacteria, debris, and so on,
but still...
You are a bag of slowly leaking snot.
We all sorta know this one, right?
Our bodies are full of bacteria,
but how full, you might ask.
Good question.
It turns out, the healthy human body
is actually less human than you might think.
Your body hosts about a hundred trillion bacteria,
and that's not even counting the viruses and other microbes.
Check this out.
If you put all the microbian cells in your body together,
they'd outnumber the human cells by a factor of 10.
We're talking a walking bacteria metropolis.
(deer farts)
Come on guys, you knew this one was coming.
Gas.
The average human being farts anywhere between
14 to 23 times a day.
The type of foods you consume can affect the type and volume
of the gas you produce.
(man farts loudly)
(woman giggles)
The gas in your farts is usually carbon dioxide,
nitrogen, hydrogen, sometimes methane or sulphur.
Think about that.
23 times a day.
Statistically, one of you farted while watching this video,
at the very least.
(man screams)
(farting sound)
(man laughs)
- So...
She poops at parties so, so...
And peoples know this?
- Poop.
And while we're on the subject,
we can't forget about poop.
Now I'm gonna try to be adult about this.
But we, as a species, are literally full of poop.
Our small intestines, our tubes that are about
20 feet in length and one inch in diameter.
The large intestine's about five feet long
and three inches in diameter.
For comparison, that's about the length of a garden hose,
inside of you, filled with poop.
Your excrement is made of undigested food, mucus,
bacteria, and dead cells.
The combination of all this stuff
is what makes your poop brown.
Most of it's water.
And it is just...
It is just gross.
So gross, in fact, that I can't take any more of it.
But if you still wanna hear more
about the repugnant, vomit-inducing things inside of you,
like, you know, vomit,
then go visit howstuffworks.com.
Check out our article,
"10 Grossest Things Inside of You" right now.
Go ahead and like and subscribe
or you'll be in a world of pain,
and, I'm not sure what to ask for in the comments,
so I guess...
Surprise me?
(man shouts off-screen)