6ish of Your Everyday Actions, Explained | Compilations

The human body can have some odd, and sometimes gross, quirks. Like, why do we blush or laugh, especially when someone burps or farts? And what's even up with us having so much gas to begin with?! It sounds like it's time for a compilation!
Hosted by: Olivia Gordon
Why Do We Laugh: • Why Do We Laugh?
Why Do We Blush: • Why Do We Blush?
Why Do We Burp and Fart (So Much)?!: • Why Do We Burp and Far...
Why Do We Sneeze: • Why Do We Sneeze?
Why Do We Itch: • Why Do We Itch?
Why Do We Yawn: • Why Do We Yawn?
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[@bjs301]

Pain can also cause laughter. When my son was a small child, we discovered that pain made him laugh. I'm talking about serious pain, like breaking a bone or being burned. His pediatrician said it isn't really that uncommon. Even as an adult, he still laughs when under great stress.

[@alejotassile6441]

I do too. It's not on porpouse

[@bootchoo96]

*gets shot in the guts* "hahaha nice one mate"

[@squippites7356]

One time I sprained my wrist and just started laughing like a maniac

[@whyuactingsopepegasusbro7196]

Joker is the best example right?

[@oldman0995]

Once I broke my toe doing something stupid. It really hurt but I laughed 🤭

[@mursuhillo242]

Why do we occasionally walk into rooms and instantly forget why we went there

[@RyanMclain]

pot

[@JRNimmo]

I think it's because we have so much to do and so much on our minds and we get easily distracted. Life hack- when this happens go back to the place you where in the previous room and start doing what you where doing there. Most times this will cause you to remember your other roomly intents.

[@mirceadraculov6515]

I have a form of epilepsy that causes this. I don't have big, showy seisures, but I have microseisures that interrupt my train of thought and cause short term memory loss.

[@mark347347]

Cancel action

[@sandrastreifel6452]

Malcom Watson: Me too! I got really stupid until my medications were changed.

[@Telonelemon3]

Why do I think about that embarrassing thing I did 10 years ago every night.

[@EvilSp0rk]

SciShow Psych for that!!

[@AFishBicycle]

Brain worms

[@compassionatecurmudgeon7025]

Most likely vengeful ghosts.

[@Mii.2.0]

@@compassionatecurmudgeon7025 Or weeaboos. Whenever I see one, a kitten is eaten alive.

[@Telonelemon3]

@@HumanOddity69 Lol it was a joke fam

[@TheFinktron]

“Man is the only animal that blushes, and the only one that needs too.” Mark Twain

[@nickb322]

The Finktron “Use the right to please.” Everyone With Common Sense

[@LucianCorrvinus]

The bluish response has other reasons it exists Think of it as another layer of things we notice subliminally, like micro expressions. Its is some times the bodies way of communicating certain things. Whether it is a response we are cued for, or we cue for it and that's why it exists, is debatable...

[@frankwagner3659]

@@LucianCorrvinus The Finktron is corret

[@arthas640]

That's because virtually all animals either have hair, fur, scales, or feathers over their skin so blushing wouldnt do any good so they tend to express shame, embarrassment, anger, or other emotions differently (dropping their ears, lowering their gaze, raising their hackles, etc.). Also Chameleons color changy thing basically is blushing even if it has a different mechanism of action.

[@hybrit2]

Actually the Pharaoh Dog can blush. ☝🏻🤓

[@davidschofield7351]

Michael is an excellent host and speaker. I love the way he presents information.

[@ItGirlCaliiopx]

I blush whenever michael smiles

[@jacklandismusic]

“Stop going on Reddit and just go to bed!” I feel attacked

[@humanoidcat9633]

Michael using banana as a phone is such a meme

[@CypressJuice]

I just call him 2-Tone HairGuy since I can't ever remember his name....🤷‍♂️

[@injunsun]

And he's the cutest guy.

[@matthewwalker3131]

it matches the blonde streak

[@injunsun]

Dogs fake-sneeze when they want to say, "Yes!" Seriously. When your dog wants to agree with something you're asking, they will fake-sneeze.

[@Im-Not-a-Dog]

Herne Webber Yup. A trait first documented in African Wild Dogs. It’s adorable.

[@knewledge8626]

When I give my dog a tummy rub she sneezes as soon as she gets up.

[@mark347347]

@@knewledge8626 Yes! More scroochies be gud for gud boi

[@alysonshorthouse8858]

That's really interesting!

[@DoctorsSong]

I had a dog that would sneeze to ask permission to jump in your lap. One morning my mom was studying and was thinking really hard. She missed hearing Mitzy sneezing, and when she finally understood what she was reading she said: OK! Dog in lap 😂

[@m.lrisner3970]

The weirdest time i laughed really intensely was when i was having an intense fight with my mom. I was like 15. We were driving down the interstate and i was so angry and depressed. Then a bird just hit the windshield... and I laughed like a "crazy person". I'm a huge animal lover and looking back on this disturbs me... but i have to admit i felt better after laughing and it helped the situation a bit. Our bodies are so weird.

[@retard_activated]

I've had "uncontrollable and inappropriate laughter" twice in my life. The first time was when I tried shrooms. So, okay. Explained. The second time was when I was driving home from work and went through a Police Check Point. I have NO IDEA WHY BUT THIS STRESSFUL SITUATION SUDDENLY BECAME UNBEARABLY HILARIOUS TO ME EVEN THOUGH I WAS DEAD SOBER. Needless to say it earned me some extra time there answering questions and such, but the cops eventually let me go. I don't even know why I felt it was funny, I actually felt nervous and I don't understand why I couldn't stop laughing!!!

[@MzShonuff123]

"Why, Bernice, Why?" 🤣

[@hannahmore9118]

You left out people who sneeze at the sun!

[@ElementalWarlock]

They mention it in the original video where the clip on sneezing was taken from

[@Zybran93]

To make it short, it's believed to be a trait that helped survival, since you don't want to sneeze out your bacteria all over your cave, so u sneeze when u go outside of it, when u look at the sun

[@Maxpakts]

Sven Görgl nah that’s not it. The sensory system of the optical nerve and the one that triggers sneezing are very close together in the brain. So a sudden strong stimulation of the optical nerve can cause sneezing.

[@therealjammit]

It's officially called autosomal compelling helio ophthalmic outburst. Yes. ACHOO.

[@Zybran93]

@@Maxpakts okay thanks, had my information from video a couple years ago.

[@busterbeagle2167]

So... it’s clear I need to be farting on my house plants

[@ana8621]

ONLY plants, ok?

[@anarchyantz1564]

Dont worry, we wont kink shame you for it.....honest!

[@busterbeagle2167]

what the hell did I just watch? Well of course my wife as well

[@lilium9361]

"Oh, beans wasn't a good idea. Honey get the fern!"

[@johnelicalugcugan8031]

Whenever I'm in an awkward situation, i involuntary scratch the back of my head, as if it's itchy.

[@injunsun]

I tend to scratch my nose in this instance.

[@punchinpupun]

weeb levels through the roof

[@kevinnelson6070]

@@injunsun Same here

[@seafire380]

i itch my right temple when i talk to people

[@M00nSlippers]

Probably a combination of 1) self-comfort, basically touching oneself in some way that is comforting in an uncomfortable situation. 2) Filler/stalling, basically a physical version of 'um/er' that queues to the listener that you are still in the conversation but you are considering what to say. In an awkward situation you might not be sure how to respond, so you scratch while you try to think of what to do, to show you're still present and haven't like, had a seizure while you stand still trying to figure out what to do.

[@macbuff81]

I love love Scishow! Such an endless variety of topics presented by hosts who really seem passionate about all things that make existence meaningful...knowledge, learning and caring

[@arkady714]

"Humans are the only animals that blush...and are the only ones that need to." - Mark Twain

[@Beeba10]

Teacher: Don't yawn while I'm talking! Me: Well, I needed to yawn to cool down my brain so I can concentrate and continue processing the information you're providing us with effectively. So really, I'm not being rude when I yawn while you're talking, I'm just making sure I'm taking everything in :) Teacher: . . . . . Whatever. At least cover your mouth when you do it.

[@killerbees6125]

Why, now I'm itching and yawning constantly, why did you do this to me

[@purplefire2834]

Yeah same. Reading the comments doesn't help

[@surabhi_kumari]

I laugh when I'm mad at someone but for some reasons can't express that I'm angry .

[@injunsun]

That's a variation on the "fear grimace." You are afraid of revealing how you really feel, so you show a signal of non-threat.

[@prakhar9473]

Passive anger

[@probably_seohyun]

lol

[@jorgea.garzav4650]

Dude, I wish I can express myself a bit less, sometimes it is hard for the people to like me. I know it sounds wrong, but everyday, every hour one needs to behave according to some "standard", we need people to like us (with a few exceptions, of course), and I fail in that sometimes.

[@asdkotable]

Ugh I can't express anger properly either! When I get really angry/frustrated, I just end up crying 😒

[@knewledge8626]

When I use a hair brush in a certain spot on the back of my head especially when my hair is wet it triggers a sneeze.

[@les8947]

Wtf people sneeze through their noses? For me I feel like it’s more in my mouth

[@CyberiusT]

Same here.

[@thefirsttime7759]

Its random

[@squippites7356]

I can control what way it comes out.

[@averagechannel802]

I never sneeze through my nose. Like no airflow

[@TheShizzlemop]

@@averagechannel802 i do but its really painful because of the pressure for like 2-4 seconds then stops hurting

[@48boltz15]

I yawned like five times while watching the last 4 minutes.

[@DenisJava]

Oh man, so did I! And I'm not sleepy or overheated?

[@vermillionsky426]

Do you ever laugh without wanting to when someones yelling at you?

[@katcel16]

I’ve always gotten the uncontrollable urge to grin/laugh at funerals/other times where it’s obviously inappropriate.

[@rljpdx]

yes, and the other person is usually not very happy about it, and the worse thing you can do is try to explain... just fake an epileptic fit at this point...

[@kindlin]

@@katcel16 That sounds like a defense mechanism to me. When you smile at people, you're inviting a friendly atmosphere, and may improve both your and their moods. It's all just defusing a tense situation with a smile. But it can come off cold in the wrong setting.

[@HZDAloyRules]

My mom goes cross eyed when she’s really angry and yelling and I’ve gotten in more trouble more times than I can count because I can’t help but laugh 😂

[@CarlosRios1]

7- when you know for a fact you left the car in first when you parked it but you just gotta make sure so you wiggle it a bit on neutral and then put it back in first.

[@allertonoff4]

" emotional incontinence "

[@terileebruyere3482]

That term made me think of a nervous tinkle.

[@arthas640]

thats usually what i think of when someone cries over something petty or fake cries. They're not depressed or distraught, they just cant hand even minor negative emotions and their brain just peed its pants via your eyes.

[@TheBotch50]

This is an awesome episode 👌😊😊 thank you

[@catherine_404]

This is a great episode!

[@dann2513]

I really enjoy SciShow videos. All of the commentators are so professional (the way they pronounce scientific terminology without skipping a beat always amazes me). My personal favorite is definitely Hank. His facial expressions and body movements keep me entertained while he easily and expertly explains whatever the subject is. I thoroughly enjoy this type of compilation video. Please do more!!!

[@raggedyanarchist]

Thanks Science Daria, Science Rufio, and, um, Hank!

[@funkytown_fox]

Once you see it, it cant be unseen

[@chrisladouceur4093]

So... when I’m having a yawning fit it’s because my brain is overheating?

[@Mii.2.0]

Yes. _Literally._

[@turtlette]

It can also be a sign that a migraine is coming for those that suffer with them.

[@blank8479]

I always found it confusing that yawning was to get more oxygen and that i may have been yawning differently Im so glad you made this video sci show and patreons

[@sophiaantropova5874]

Strangely, I yawn all the time if it's cold in the room

[@botigamer9011]

To bring cool air into your system

[@sophiaantropova5874]

@@botigamer9011 but I am already cold))

[@renivideht]

When your environment is cold, your body will have to work harder to keep you warm. Yawning could be a way to regulate temperature that way.

[@BinkyBorky]

I used to sneeze when I would think of my sexual kink. it's calmed down now, but it used to be three sneezes in a row. That has to be psychological.

[@asdkotable]

Uhm I used to have a similar situation as well lol There's definitely something to it, after all, the Japanese do use nosebleeds as a comedic shorthand for expressing lust or sexual interest. I'd read somewhere that it had something to do with the fact that Japanese people had high blood pressure, and when sexual arousal increased their already high blood pressure, they would end up bursting blood vessels in their nose. I wonder if blood pressure is related to our sneezing thing.

[@arthas640]

I've heard of sneezing being connected with sexual arousal before and heard it had something to do with an involuntary nervous system response similar to a vasovagal response (a drop or rise in blood pressure due to stress or emotions). Basically your body gets into a state of arousal (sexual or otherwise) and sort of short circuits and has a random reaction like sneezing. Personally I cry when I get really angry, like blind violent rage, but rarely cry when I'm upset or sad.

[@MacchiStrauss]

And now I can't stop yawning. Thanks, Olivia.

[@djmouton251]

You made me itch & yawn at the same time, good job !

[@alyssam8550]

Two scishow videos in one day? It's a miracle!

[@verdatum]

I really like Olivia Gordon. She does a great job.

[@nikkiferlazzo]

A minute before the video ended, I sneezed 🤧 ha! Thank YOU!

[@Noneblue39]

what satisfying video knowledge-wise.....things u want to know in a single video ! :)

[@gibbbon]

damn, just saying the word yawning made me yawn

[@hollieleaf9192]

you made me yawn 😅

[@hollieleaf9192]

@@sentientfetus3894 I didnt say anything about foetuses ya mong 😆

[@listentomerantaboutuseless34]

why did i laugh at the word gelotologist

[@mirceadraculov6515]

Because it was incongruous.

[@jameslansley8781]

I immediately switched on the fan. Love from Australia!!

[@jerelull2619]

Hope you had a good nap afterwards. BTW, you make that outfit look pretty good.

[@howstrangerous13]

"We're more likely to laugh when we're in a social group than when we're alone" Yeah, right. I laugh a TON when I'm alone... Because no one's there to judge me lol.

[@everydayisearthday5500]

I like the compilation

[@hendraibaraki]

2 episode a day yay!

[@Dozerson2]

I believe in the idea that laughter is a way of acknowledging weakness that people are not perfect; that's why we laugh at unexpected things because we don't notice or understand everything, or why we laugh at a jerk because they just proved how imperfect they are or why we might laugh when we're in pain because we realize just how foolishly clumsy we are.

[@Catastropheshe]

"You know what's funny? - Laughter" Haaa I slapped my knee lol

[@safala]

Michael and Hank have to be my favorite scishow hosts but I Olivia and Stefan as well.

[@susanrobinson910]

Wow, I never knew there were so many different theories, etc. about laughter. Now, the next time I laugh, I will be thinking, "Am I laughing because those were incongruous things, or because I am a jerk?"

[@arthas640]

maybe your a jerk but that has nothing to do with the laughter? maybe you finally got the punchline to that mornings Doonesbury comic?

[@Beatit444]

I paused to test the banana phone theory... All 3 laughed... 😂🤣🤷‍♀️🍌

[@illusion-xiii]

14:22 Audience *scratching furiously*: Yeah, we know!! Stop talking about it!!!

[@smbdy248]

"Laughing randomly and uncontrolably can be a sign of brain tumors" Joker: HAHAHAHAha......ha...... oh

[@pooks8520]

do a video about if/why you shouldn't pick up bird feathers

[@greensteve9307]

Pretty sure it's fine so long as you wash your hands before eating. (Not that I do that myself, so I can't really speak. Maybe I have a great immune system?).

[@knewledge8626]

How am I supposed to use a chicken feather for a toothpick if I can't pick it up. Y'all really need to think these things through first.

[@laurachapple6795]

Well, I definitely laughed at Bernice. Thanks for the health benefits, Bernice!

[@AshleyReynoldsCrackyCrafter]

I laughed at bag of rusty knives...🤣🤦🏽‍♀️🤷🏽‍♀️

[@ZOOMPZ00mp]

I laugh at rusty trombones

[@thothtahuti5509]

I get the mad tramadol itches, they're great ::)

[@zyakthecleric]

Thank you for saving yawning til the end, yawning like crazy now. Lol

[@christelheadington1136]

1: Oddly specific, having the pants of your band uniform pulled down. 2 : Burps and farts beat trapped gas bloating.3: My cilia need resetting.

[@arthas640]

1: just be glad he blushed and didnt get a nervous boner. That happened to some poor bastard at my middle school while he was wrestling with his gym shorts. 2: can you imagine if we just kept building up gas until we sprung a leak and flew around like a balloon? 3: just stick 1 finger in your ear and the other in your belly button while sneezing. If done correctly it will do a factory reset on your digestive system which may fix the issue if its a software issue. If it's a hardware issue you'll have to try and find some aftermarket replacement parts on ebay.

[@SleepyNoddy]

Ah, young Hank! 😂 isn't this a blast from the past, lol.

[@1v1meinpackettracer86]

Hank is still young

[@gojifan54gaming15]

My bunny sneezes and it's really, really cute!

[@koretmulder6316]

Laughter as a stress release mechanism... An ex of mine could only process pain through laughter. He was a roofer, and one day I got a call that he was in ER. A load of roofing material had been funneled down the shoot from three floors up, while he was still clearing out the dumpster. His leg was broken in two places. I got the call, and rushed to the ER where they had taken him, and was able to track in on him by the sound of his cackling laughter. Like, the more it hurt, the harder he'd laugh.

[@Lillyluvsanime]

15:25 Birds do it. Bees do it. Even educated fleas do it. Let's do it. Let's have a yawn!

[@jiml408]

re: sneezing What about trigeminal nerve stimulation? (i.e. sun sneezing)

[@calska140]

2:55 this guy's a comedy genius, Godamn 😁🙌😁🙌

[@Beutimus]

The talk of itching promptly made me itch multiple times. XD

[@torugho]

YAY Michael has got the yellow stripes back

[@chefRyan38]

I never apologize for chewing on the furniture.

[@ThiagoCRocha-fh6lg]

*mind blowiing*

[@berniceporter8839]

I claim innocence of the pants pulling episode!!!

[@ohhbliviousgaming]

Have they ever talked on this show about why sometimes when i put my tongue up it sprays a little water, like a spitting cobra

[@allbeit582]

over-active salivary glands.

[@ohhbliviousgaming]

@@allbeit582 i don't know if this was ever on the show or youre just helping me, but thank you

[@allbeit582]

@@ohhbliviousgaming my dentist told me that years ago after i squirted him.

[@ohhbliviousgaming]

@@allbeit582 😂😂😂😂😂😂 you learn something new everyday

[@lewelstamp]

we called it gleiking when i was a kid. some of my friends could do it at will

[@GrumpyOldFart2]

Would have been cool if, during the sneeze segment, they covered photic sneezing: sneezing when you’re suddenly exposed to bright sunlight...or any bright light.

[@jerelull9629]

you just covered "photic sneezing" for them.

[@overcookedwater1947]

Shout out to all class clowns. Thank you for making us laugh

[@notyourhoney5728]

I have chronic sinusitis this was very helpful 😌

[@gwen6622]

that thing about yawning is a game changer, im probably never gonna forget that now lol. i would never have thought it had to do with cooling the brain down

[@zachariousoftroy]

I like to think Hank constantly rehearses the elements in a human fart the way Ed and Al do for the human body in Fullmetal Alchemist

[@Shuhister]

I yawned like 5 times during that last part.... And can't stop now....

[@Lowtan]

Sneezing, annoying? I LOOOOOOVE sneezing. It feels soooo good.

[@sksk-bd7yv]

I've never ever seen my cats show shame over Anything they've done. Possibly proud, though.

[@senselocke]

Oh, we're supposed to wait to make sure our friend is okay before laughing at them falling? Um, I knew that... yeah...

[@kelliethekid8883]

Thanks for making me itch now

[@jakobraahauge7299]

Olivia! And Hank! And Michael! 🥰 now I'm ITCHING to learn more, could you do one on lice? 🦟

[@giantsquid2]

Michael is gorgeous.

[@dorelle]

Lol what does it mean when I chuckled several times during this video- on my own!?

[@huyked]

2:42 I laughed when I saw Hank laugh.

[@huyked]

@Ana Zervigon xD

[@therealveridicalyt497]

SciShow: Yawning cools your brain etc. My Teacher: Hippo

[@teej008]

I traveled to Tunisia a few years ago. The plane hit some really bad turbulence and I could not stop laughing all the way through it. I got a few weird looks but I couldn’t help it or stop. Fun

[@retard_activated]

Michael, quit chewing on my furniture!! 😡🤭🤣🙄🤔😂😜😁💖

[@jacobopstad5483]

I've suffered from sinusitis for a long time and I recently stumbled on something that really really helps: buzzing my lips! Buzzing them at a very low frequency and very loudly causes my head (and nose) to vibrate and all the stuff in it. Sometimes, I can even make myself sneeze if I do it right. Anyway, after about 15-20 minutes or so, I can feel the mucus moving around down my throat and eustachian tubes. Since I started doing it, my sinusitis has steadily improved and I haven't had ear infections.

[@jayrabbitgamingproductions7335]

0:50 I was laughing my lungs out for 6 hours today, don’t even ask why

[@arthas640]

but why tho

[@tanihehe]

Olivia!!! Yay!!

[@renhoeknl]

Hurray for Olivia!

[@thinmintz496]

I dunno about ya’ll but Hanks voice makes me happy lol

[@serialced]

Yeah I'd like a source on dogs saying sorry please. They pick up on our visual and auditory cues but that says nothing about their ability to comprehend they did something 'wrong'.

[@borttorbbq2556]

That's from tone

[@DirkBotha]

I laugh way more often when I'm alone, than I do when I'm among other humans. I do so, because laughing at them while you are with them is considered rude. Seriously, you can only watch people make a train-wreck of their lives so many times, before you stop feeling sorry for them. At some point in time one has to accept the reality, that you are dealing with idiots, and resign yourself to getting out the popcorn and enjoying the show. :)

[@hunterc626]

That is hilarious! I literally burped up some coke as he said that! 🤣 Vanilla, to be specific 😄

[@TurboSilke]

the sneezing, my body also does that to get rid of excessive sunlight...

[@MonstobLee]

seeing him using the banana as a phone made me lol

[@ozsun9736]

heeell yea brotha

[@ZacharyLaid]

Everyday I watch KZbin.

[@JEBavido]

That’s so cool to hear about yawning, because my son was undergoing a series of tests, and the neurologist would give him a break whenever he started yawning, telling me, “His brain is tired. We’ll wait.”