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Why Our Brains Love Junk Food



Hank explains the scientific reasons behind why we humans generally prefer to eat donut hamburgers to carrots.

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References
Diet & the evolution of the earliest human ancestors - http://www.pnas.org/content/97/25/13506.full
Australopithecus: Diet - http://en.wikipedia.org/wiki/Australopithicus#Diet
Did cooking make us human? - http://www.youtube.com/watch?v=rf_OWun4Y04


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Author ShadowTheSoulless ( ago)
I'm not fond of raw carrots but if it was 'broccoli or fries' i'd eat the broccoli , only if it was steamed. or a banana, im nto a big fry person sry. now if it was Chesse cake or broccoli... id pick cheese cake.

Author 2Awesome ( ago)
So much for not talking with your mouth full...

Author Grace Madeline ( ago)
@all vegans/vegetarians who insist humans are supposed to be herbivores (and I'm vegetarian, but I hate this misinformation)

Author Benjamin Malave ( ago)
Carrots vs. French Fries is not a fair comparison, as the latter is a prepared food. What about carrots vs. potatoes?

Author Michael Hartman ( ago)
Why do we prefer some foods hot, and some foods cold?

Author i hate gmail ( ago)
gimme both dude, theyre both delicious

Author Podigy Video ( ago)
How about sweet potato fries
They are healthy and tasty

Author green tea ( ago)
we're not omnivores

Author arrozblanco7 ( ago)
Carrots over Frenchfries? Why you always lying..

Author BonziBuddy ( ago)
Proof that vegans are dumb as shit.

Author Herobrine 37 ( ago)
I´m for fries (Note: I´m not eating fries frequently) :D

Author random mcr fan Lgbtq ( ago)
I don't like hugs

Author Natroya Powell ( ago)
who tf still believes that we evolved from apes

Author BlueberryBumblebees ( ago)
I find this video as I'm eating ramen made with garlic powder and cayenne, drained, with a tab of butter...

Author Savannah Raines ( ago)
HANNNNNNNNNK <3

Author TheBoltMaster ( ago)
I eat nothing but fast food for 15 days straight,doesn't even gain a pound...STOP MAKING FUN OF ME OK! I'M JUST SHORT AND SKINNY THIS WAY! XD

Author Michael Maxime ( ago)
so that's why L eats all those sweets!

Author Lizica Dumitru ( ago)
but fries are nutritious...for my brain...evidently

Author Ito Ri ( ago)
"I swear this is going to be the last SciShow video of today..."
*finishes video*
"OOOOOO WHAT'S THIS???"
*clicks on another SciShow video*
There are so much videos like tf help me

Author Lerd Nerdaderd ( ago)
Hank: and our brains are like YEAH!

Author Aubu Atmora ( ago)
I love Carrots....
French fries ... meh....

Author Rishab Manral ( ago)
do you ever blink bro

Author greg furtiere ( ago)
i like carrots in my bum,

Author Rata Touille ( ago)
2:56 You should say " Whats up doc?"

Author Federico Olivares ( ago)
do not talk with your mouth full...

Author भारतीय ( ago)
curryyyyyy

Author Bhaalspawn84 ( ago)
Honestly i'd eat half of a carrot then fries then carrots to the fridge until forgotten&moldy.

Author Andrei Joaca Gaming ( ago)
I love French fries.....

FUCK YOU CARROTS!!!!!

Author The Leaving Goose ( ago)
I'd go with potato, baked potato that is.

Author Rylee Matthew ( ago)
The brain demands fat foods because it loves it, the rest of the body screams in pain with every bite. Not literally, though.

Author Inkly ( ago)
I love carrots....

Author Jazzy ( ago)
the fries are prepared, the carrots are not. I would much rather eat roasted carrots with seasonings than fries. don't get me wrong, I love fries, I'd choose them over the raw carrot any day. but it's not quite a fair fight to pit a food that's already cooked and ready to eat against raw food that doesn't even look washed yet.

Author R Tex ( ago)
That is one hairy grandma Hank! (Mind blowing hint: Not human and not a human ancestor.)

Author 啊啊啊 ( ago)
not gonna lie to myself, i would always chose the fries

Author Thexsillyxzone ( ago)
CARROTS!!!

Author BetsyBlue ( ago)
Yasssssss. in fact going to grab a doughnut .

Author Ray ( ago)
I was eating a snickers bar while watching this 😁

Author Bobby ( ago)
"Which would you rather eat?"

Me: PUSSY

Author Lenny Is A Carrot ( ago)
I'd rather eat carrots. Honestly, I love them. I'm not a very big fan of French fries.

Author youtube fan ( ago)
What about no oil unsalted baked sweet potato fries?

Author youtube fan ( ago)
We're herbivores...

Author Dalek ShitPoster ( ago)
At The Start
Why Not Both?

Author Ow! My Eye! ( ago)
Carrots are just too unpredictable. You never know if you're going to get something sweet and delicious or if you're going to get something nasty and bitter. Usually, you just end up with pure blandness.

Author L0b5terlick ( ago)
Why did my mouth taste like carrot when I heard that sound?

Author josey428 ( ago)
DID U MAKE A VIDEO ABOUT THINGS THAT MAKE US HAPPY WE LIKE??

Author Hall Kids ( ago)
meat is better

Author Seqouya Trae ( ago)
can i just have a bottle of ketchep instead

Author Christian Cecere ( ago)
hank, don't talk with your mouth full. lol

Author MiyuxxKankuro ( ago)
People keep saying they wants carrots over fries and I'm just like...

🎶 Why the fuck you lyiin'?
🎶Why you always lyin'?
🎶 Mmmm Oh my God!
🎶Stop fuckin' lyin'!

Author MiyuxxKankuro ( ago)
People keep saying they wants carrots over fries and I'm just like...

🎶 Why the fuck you lyiin'?
🎶Why you always lyin'?
🎶 Mmmm Oh my God!
🎶Stop fuckin' lyin'!

Author JJ _The_Ent ( ago)
Carrots

Author Nuclearsheep 53 ( ago)
hank reminds me of my english teacher keith thompsen.

Author AlmightyCarrot ( ago)
Don't you dare eat those carrots!

Author GeekGirl2K ( ago)
Give me the carrot please!

Author Deniz Kara ( ago)
Than fry the carrots. Julienne cut them, than fry with your choice of oil. On a separate cup prepare some yogurt sauce by whipping some yogurt, 2-3 cloves of grated garlic, olive oil and salt. pour over your fried carrots. Bon appetite. Much tastier than french fries, and still carrots. (you can do the same with eggplants, zucchinis, whatever vegetable you see fit)

Author Tina Hanken ( ago)
On the vaery first question, both

Author dweezel theyounger ( ago)
Ah yes! It makes perfect sense! Our brains "evolve" toward what we really need and what furthers our evolution and will ensure our existence! That's why we love junk food, and pot, and heroin, and alcohol, and....wait, that doesn't make sense. Evolution favors our destruction? What a silly video indeed!

The truth is there are no scientific explanations as to why we love junk food other than a cheeseburger tastes way better than a carrot. FAT TASTES GOOD! It tastes good not because our brains know we need carbs, but because fat induces different responses chemically on the tongue and in our systems than other foods. We're also induce chemically by processed food manufactures to love their foods artificially. No big mystery here, and it has nothing to do with evolution at all. We get videos like this when we try to fit real life into fantasy.

Author 0NeonCreeper0 ( ago)
our brain prefers more of a good taste so when the brain sees broccoli noooo

Author Jasper Turck ( ago)
CARROTTTTTTTSSSSSSS!!!!!!!!! or fries CARROTTTTTTTSSSSSSS!

Author Griffin A. Curtis ( ago)
I chose the fries because I don't like carrots... If it was broccoli instead, screw fries!



-the only broccoli loving twelve year old in earth.

Author Zachary Stephan ( ago)
hank seems mildly intoxicated in this episode...

Author Winston Toskavich ( ago)
"we're kings of the freaking earth"~Hank 2012

Author FrozenTvDinner ( ago)
http://get.shopkick.com/maryland63031

Author Matt Jensen ( ago)
How does the body know to induce the feeling that you can't breathe when you're running out of oxygen?

Author Albannie Parris ( ago)
You know how we get urges for certain foods? Do you think that would be caused by lack of minerals contained in the certain food ? And if so, how would that account for the fact that we don't like some foods at all? Do we have enough of it in our bodies that we don't need the minerals and therefore our body rejects the thought of that food or is it just the design of our taste buds?

Author ( ago)
Your brain is like YEASSH. Your body is like NOO

Author Al Radi ( ago)
hanks is too awesome!!

Author Sad Adioz ( ago)
The carrot looks and french look like they have stayed out in a month

Author 马方杨 ( ago)
I always ask for one more lettuce in my burger, keeping healthy! ^^

Author Arielis zapata ( ago)
i love mcdonald chicken nuggets

Author Dávid Kertész ( ago)
I would totally go for the carrots. I love carrots.

Author Misha Wu ( ago)
after shooting this video... "gimme the fries" 😂😂

Author TheOskar09 ( ago)
can you do a video about low-carb vs high-carb?. from the research i've done i have come to the conclusion that a high carb low fat diet is better for the human body and brain than LCHF.

Author Black Magic ( ago)
you re full of shit geek

Author Light 1988 ( ago)
What specie were the genius homos?

Author Wayne Lu ( ago)
FRIES!!! CARROTS!!! Oh my... Why don't you just make carrot fries?

Author Morfeus (1217 years ago)
What? I answered carrots!

Author princessbinas ( ago)
Give me the carrot! I was eying the carrot more...

Author Bob Jones ( ago)
Yes, yes, junk food is actually good for you, among the most essential in fact. Just that too much of anything will kill you. Unless you're talking about artificial junk food ingredients that were designed to only replicate the pleasure effect.

Author D. Travel ( ago)
2:36! it is the same with junk books and movies. when your body adapt to it. it becomes your everyday need . potato is not bad for you. what is done from it is bad

Author Robert Farquhar ( ago)
I like vegetables, meat etc even junk food like chips stuff like that but no sweets I don't like them except fruits

Author That Sheep ( ago)
Anyone else get a carrot after watching this?

Author FEATH DUCK ( ago)
And our brains are like... YEAHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!!!!

Author me me ( ago)
French fries or carrots?

I rarely ever get eat some carrots! Lemme take those.
Wait- There were French fries?
Oh well, I'm done withy the carrots, take your plate back.

Author Oni ( ago)
why would you eat a carrot without peeling it first?!

Author blacksheep837 ( ago)
Amazing how you have the nerve or the guts whichever one you want to admit to thinking that your ancestor was a monkey! I find that fascinating, I really don't know how you get up in the morning knowing that all you are or should I say thinking that all you are, is an Ape. How sad.

Author Voult Boiy ( ago)
Is it weird that when I go to the shop with some money I will always by a carrot?

Author matthew mann ( ago)
Sadly Ironically generally speaking it is usually the stuff that is bad for you that tastes better and more of the opposite for the stuff that is good for you maybe there is some middle ground though I mean Vegan and Soy foods I am sure can produce pretty good healthy stuff as well as protein maybe with smaller calories of fat.

Author Science whiz kid ( ago)
I would take them both

Author Ariphael ( ago)
These french fries look shit, I'm going for carrot.

Author ( ago)
I don't believe in anything. Not even evolution or God or Islam or whatever. Its my freaking life im not changing it to some stupid god.

Author GalaxyOfWaffles # ( ago)
Carrots or Frenchfries? Why not both! :D

Author Jordan Washko ( ago)
Carrots I am a health nut

Author ( Έρις ) ( ago)
Is this the guy from "it's ok to be smart" ??? O.o

Author Ten Sixty-Six ( ago)
Is it weird that I was eating salad while watching this and I ate a donut and potato chips while watching chefs make vegetarian food?

Author Stelpan Gaming ( ago)
i hate that my parents are always that i should eat mpore veggie instead of meat eating wtf were not herbivores

Author K1ttensausage ( ago)
carrots or fries....why not both?

Author Syukri R.Robert (750 years ago)
CARRROTTTSS!!!!! Taste like candy but crunchy and stuffy at the same time!!!!!!!!!

Author Mrs Garzo ( ago)
I EAT PLATES

Author funkyman909 ( ago)
haha what a load of crap x'D i even came up with this idea in my head its astoundingly false 

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