Your reptilian brain, explained | Robert Sapolsky | Big Think

Your reptilian brain, explained with Robert Sapolsky
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What's the best way to think about the brain? While most of us think of it as a dense gray matter that’s separate from the physical body, that actually couldn’t be further from the truth. Our brain is made up of 3 layers, and each layer not only directly impacts the other, but has control over the physical body and how you feel.
The 3 functional layers of the brain are the reptilian brain, the limbic system, and the cerebral cortex. The reptilian brain controls the regulatory systems in your body like hormones, body temperature, blood pressure, and even hunger. The limbic system is the emotional function of your brain, making you feel fear, anger, joy, or gratitude. Finally, the cerebral cortex is the most evolved part of the brain that oversees impulse control, decision making, and long-term planning.
With a better understanding of how each part of the brain functions, we can have more mindful thoughts that will influence more favorable decision-making and outcomes in life. For example, when you think of your favorite memory or something that makes you happy, your reptilian brain will quickly cool down your body and even lower your blood pressure. This can then lead to feeling less stressed, and finding more joy throughout the day.
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About Robert M. Sapolsky:
Robert M. Sapolsky holds degrees from Harvard and Rockefeller Universities and is currently a Professor of Biology and Neurology at Stanford University and a Research Associate with the Institute of Primate Research, National Museums of Kenya. His most recent book is Behave: The Biology of Humans at Our Best and Worst.
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Read more of our stories on the reptilian brain:
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Hack your brain for better problem solving
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[@emozi6730]

The human brain is super advance and complex. - the human brain

[@overmanonfire]

A clear case of megalomaniaism

[@emozi6730]

@@overmanonfire point

[@ZiplineShazam]

Yep. . .Narcissism is one hell of a drug

[@JakeCourtney]

Another brain here. Can confirm.

[@shankysays]

Didn't knew we all were narcissist.

[@jasoncalva]

I feel like this is should be common knowledge and taught to everyone in such a clear-concise manner. This is one of the biggest reasons the placebo or nocebo works the way it does, our cognitive states influence our biology.

[@Competitive_Antagonist]

I guess you're using cognitive as a code word for thoughts and beliefs. They can influence biology, but not to the extent that people make out they do. Our senses all enter the brainstem though cranial nerves. From the brainstem they progress though the reptilian brain, to the limbic system, eventually reaching the cortex and the neocortex. The brainstem and limbic system are the preconscious primitive aspects of our brain that process stimuli and give it an emotional tone before it's even made aware to the conscious mind. Our thoughts can influence our biology, but it would be absurd to say this is true for everything, especially when dealing with sensory triggers. When you see a spider, you don't even have time to reflect on what spiders mean to you before your primitive brain immediately responds. I doubt any amount of re-education would change that reaction, the primitive brain works independently to our beliefs.

[@lelouchlibritannia3771]

@@Competitive_Antagonist What happens then, when people "heal" from arachnophobia?

[@Competitive_Antagonist]

@@lelouchlibritannia3771 They're able to continue watching season 6 of 'Breaking Bad'. In terms of neurology, I would guess that the amygdala is no longer firing at such a rate when they allow a tarantula to crawl on their arm. You'd need to do an fMRI before and after successful treatment to be sure, but I'm sure there would be much less activity there, since that's where a lot of fear and anxiety is processed. There's other brain areas, but I can't remember them right now. Do you have a better idea?

[@abhiavasthi624]

@@Competitive_Antagonist what a great discussion and critique, god bless you.

[@DoctorSess]

@@Competitive_Antagonist so if my natural reaction to spiders isn’t revulsion, to the point of where I felt an orb weaver crawling on my neck just a few days ago and didn’t flinch, is that me consciously suppressing that? Or has my primitive response axrually changed?

[@christophervanburen8923]

Sapolsky is a legend. I read his 700+ page book "Behave" from front-to-back and I'm about to read it again! Best education you can get for the price of a book!

[@LateButGreat]

It changed my path through academy making everything more clear and I'm already anxious for the new one: "Determined: A Science of Life without Free Will"

[@maya-cc2sx]

Can someone mention the key points in that book?

[@jeylful]

@@maya-cc2sx Wikipedia should have them if notable enough

[@vritantpaul6676]

@@LateButGreat Is it a new book by Robert Sapolsky?

[@tme98]

@@vritantpaul6676 I think it is.

[@zeinlaing8814]

Professor It is so nice to see you speaking again in the social media platform. You are one of my favourite Professors in the world. I'm I glad I came across this.

[@socialogic9777]

The concept of bio-feedback is mind-blowing i.e. lymbic brain blowing.

[@VeganSemihCyprus33]

Watch this CRUCIAL documentary on youtube 👉 The Connections (2021) [short documentary] 💖

[@nonsequitor]

You mean Cortex blowing 😉

[@VesperAegis]

@@nonsequitor I think it'd be limbic system blowing if we assume it's the cortex blowing onto the limbic system. Not to get too nitpicky with the transitive verb and that being the object. Either way, I love how Dr. Sapolsky essentially describes "creating a relaxing environment" as a muscle. Reminds me of mindfulness meditation.

[@tmead07]

In 7th grade my biology/science teacher had us do an exercise where we put a finger on our wrist and took our pulse. And then had us just focus on slowing it down a little. It worked for myself and a lot of other kids in the class. I remember thinking if we can do that with our heart so simply and easily, what else can we do? Still learning about that. :)

[@socialogic9777]

@@tmead07 Great point. India's first olympic gold came in 10m rifle shooting. And recently olympic made a documentary on Abhinav Bindra. He says that he has to shoot in between heart beats. That is a hard thing to master. Controlled breathing requires our brain and body to work in precise synchronisation

[@pinakoza]

I am a medical professor, and I always tell my students about Guided Imaginary, and how it can relieve your pains and sufferings, and make life less stressful. This is that beautiful video truly explaining how the concept of guided imaginary, and how it works. Thanks for making and sharing this video 👍😊

[@suzannenichols6900]

I'm glad somebody's teaching that. I wish they would bring that sort of healing modality into hospitals. Adding healing sounds to patient environments sounds like a good idea to me

[@zacharyalexander3394]

You should keep in mind, professor... Those with "aphantasia" receive absolutely no benefit from that practice.

[@pinakoza]

@@zacharyalexander3394 Unfortunately true!

[@teddymills1]

Thanks about the Guided Imagery. doing that stuff today. Is that like ASMR ?

[@ashleyhill6697]

I dont need to hack my lizard brain. That's basically all I use everyday. I need to learn how to hack the rest of my brain.

[@ranc1977]

You got it!

[@FayeKu]

Someone put the wrong text in the closed captioning for this video.

[@VeganSemihCyprus33]

Watch this CRUCIAL documentary on youtube 👉 The Connections (2021) [short documentary] 💖

[@1life0gods]

I thought there was something wrong with my phone for a second😄

[@lifewithlouie420]

I thought my lizard brain was trying to read.

[@zimilaamiti1214]

@@1life0gods me to

[@unrealengine4958]

must have been a girl

[@rocksalt636]

reptilian brain: “Hey I’m hungry, go tell the cortex to eat that child” limbic system: “w-what” cortex: “man I’m craving eggs for some reason.”

[@AdarshRaj-nw3yj]

Similar to Id ,ego , and superego.

[@ranc1977]

If you explain your reptilian brain as monster, you will self pathologize parts of your personality - you will create mental imbalance if not mental illness.

[@davidottley2739]

This was honestly incredible to take in. Dr Wise Poseidon is one of my faves on this channel! You're a great teacher, Dr Sapolsky.

[@Ghostly0451]

Wise Poseidon

[@schmule460]

Lol wise poseidon how did you get that?

[@davidottley2739]

@@schmule460 I don't know how you don't get that. 😉 His whole look screams- Ancient Wise One of the Sea. There's his salt and pepper, sea-sprayed curls, his majestic beard, the dude looks like he can handle himself- like a sailor, his weathered face has keen, shrewd eyes and you can tell that he is full of wisdom. I added the "Wise" part to the name cause, I mean, let's be honest, the greek gods weren't aways that wise- hence the qualifier. Regardless of what anybody calls him, I bet he still smells like him. I should go to sleep. I think I'm mixing up my metaphors. (I don't know if any of what I said makes sense to anybody but it does in my brain. ***Also, for the record: This thread was written by Kiersten, Dave's wife, Dave being the account holder I've been commenting under, the account of which I'm too lazy to sign out of and re-sign into my own so I hijacked my husband's so suck it Dave...)

[@nunyabiznes33]

I see him more as Santa Daddy. I guess it's coz it's almost Christmas LOL

[@davidottley2739]

@@nunyabiznes33 😂👏 That works too. Regardless- he's a beautiful man.

[@FutureMindset]

The brain is an amalgamation of the most animalistic instincts that are in pretty much every organism and also the most advanced cerebral cortex. It's kinda cool if you think about it.

[@blasterdarkness5649]

Ikr, and it’s all so fascinating

[@VeganSemihCyprus33]

Watch this CRUCIAL documentary on youtube 👉 The Connections (2021) [short documentary] 💖

[@Psychol-Snooper]

Behavioral Biology is the most amazing and important field there is. It is the study of the science of why anything living does anything. From human to earthworm (and far beyond) the same structures and chemistry (basically) perform the same functions. All the mysteries are being unraveled at an amazing pace. If you can think or a confusing, or troubling human behavior (e.g. climate change denial, vaccine reluctance, acceptance of tyranny, sexual behavior etc, ad infinitum) BB either explains it or is getting closer every day, and the speed is only accelerating. Let's just hope the good guys come out on top before the other guys make 1984/Brave New World science fact! XD

[@pouya3945]

Self-illusion or thinking is like a transparent curtain that adds an extra layer of information to our vision, we see our thoughts but they do not exist in front of us! This is the human ability to see things that do not exist! The problem that occurs in humans is that, when the nervous system contracts, the thinking process automatically begins to think! And because most people have more or less nervous system contractions, they have this extra thought! And in the long run, these thoughts almost become an additional operating system, and it makes its own decisions! If the nervous system relaxes, this process of extra thought will automatically stop and the new human being can see the world as it is without disturbing the mind! After that, it can be understood that creation is predetermined from the beginning to the end day! As consciousness we only understand the life story, and the rest is out of our control!

[@Psychol-Snooper]

@@pouya3945 I see what you are saying. When you say "nervous system contraction" I believe you mean "autonomic response." And from the ancient Greeks to today's... Sapolskys (i.e. greatest academics,) a calm detached demeanor is the ideal! It grants us the best potential perspective to sound reason! Yet if your toddler is darting towards a precipice over the rough sea, pausing to ponder the best course of action, is the worst course of action. Miyamoto Musashi, a famous swordsman/duelist and philosopher some 400 years ago had a wonderful insight into the mater. He pointed out that as children we learn how to use stairs, and thereafter user them without a thought. But if we stop to ponder the action of climbing the stairs we will use them clumsily almost as if we've forgotten what we knew. (Because this in KZbin I should point out I'm not in any way disagreeing with you, but rather adding nuance, and using any excuse to paraphrase Musashi.)

[@ThePissaniMethod]

I propose a hack for the biofeedback approach: don’t just think about a happy memory, allow your physical body to also feel something pleasant. Something that isn’t uncomfortable (ie ‘stretching’ for some people) and combine both the thought and the action. Thank you for sharing!

[@monztermovies]

Robert just appeared on the Andrew Huberman podcast. Love Robert ❤️ I’d love to have a cup of coffee with him.

[@Simulacras]

His voice is so soothing that I needed to repeat some parts because I kind of went to other dimmension 🤦🏽‍♀️

[@ClearerThanMud]

Here's a tip for those trying biofeedback. If thinking about the happiest day of your life doesn't work for you -- perhaps you have poor autobiographical memory (like SDAM) or just don't have much in the way of happy memories to choose from -- you can instead write stories in which the protagonist is loved and happy. I have found this to be extremely effective, and now I think about one such story every night as I go to sleep.

[@raksdachamp5527]

Professors hair gets more magnificent every new interview

[@joturner2125]

Must have the same barber as Weird Al Yankovic. 😬

[@BentReality.369]

No flippen way! I was going to say that. then I hit comment.

[@ponpon_27p]

This explains how the different parts like critical thinking, emotional, and body senses react to each other helping me understand how my rational thoughts can communicate with my emotions to better control my anxiety

[@adrianbiber5340]

Practicing gratitude and meditation are some tools to exercise self regulation. As of course are exercising, dieting and fasting in the physical domain. As is study in the cognitive.

[@unknownfilmmaker777]

I don’t know why people are complaining; this is a great video about tornadoes.

[@davidottley2739]

😂

[@joturner2125]

🌪😅

[@cmsgt4]

Love the scientific explanation of hangry.

[@_BobaFett_]

Kids in Ethiopia wish they could be ‘hangry’. They literally have such little food that there’s no excess calories available in their bodies to be spared to produce ‘Anger’; they’re just too extraordinarily hungry.

[@monsieurLDN]

@@_BobaFett_ Only the poor ones though

[@joelstephenson8017]

Lol

[@nick281972]

I get sick of being human sometimes, its so complex and convoluted. sometimes I envy bugs.

[@Skibbitypappappa]

Yeah being stepped on sounds like fun...

[@maydavalle]

🐞

[@danthemansmith6095]

You have the ability to make your energy or focus resonate on the same frequency as certain other life forms in nature. The practice of meditation or awareness, mindfulness with intent can bring you to the same level of consciousness or being. It takes devotion and a sincere want to know how to get understanding ones own higher self or consciousness. I never thought this until I had a medical trauma event in my life 6 years ago and during my rehabilitation I was introduced to the practice of meditation. Through practicing, I slowly gained my ability to really still ones mind and realizing how much more to my being there is than what I have ever been taught by mainstream anything. I am still amazed every day and the possibilities are endless when one goes within to know thy self! Take care and have a great day!

[@Skibbitypappappa]

@@danthemansmith6095 Out of interest has the practice of meditation directly helped ease the medical trauma also? (Serious question)

[@nick281972]

@@danthemansmith6095 wow wasn't expecting that, but thanks

[@MoriteMax]

Very insightful video! I appreciate this video a lot more than I would have before I tried, for example, HRV biofeedback. Thanks for sharing posting.

[@BeGioBijoux]

This guy is so good. Thank you guys for posting this I love Professor Sapolsky content.

[@eedsweezy]

I watched your lectures on Stanford's channel. You're the first speaker I've been able to sit and listen to.

[@sureshvijay1994]

Omg. Literally felt that. Visualized my happiest day, my favorite holiday and felt my heart rate dramatically slow down and I'm suddenly feeling a whole lot better.. just like that. I'm kinda amazed that that's all it took!

[@vancandan1]

Zach Galifianakis has come along way

[@VeganSemihCyprus33]

Watch this CRUCIAL documentary on youtube 👉 The Connections (2021) [short documentary] 💖

[@VeganSemihCyprus33]

Good joke by the way 😂

[@newbegining7046]

Some serious dieting…

[@joturner2125]

🤣

[@bruce_v4889]

😄😁😁😁

[@asmrbroccoleader]

Full(not to full) tummy. stay out of prolonged stress, breathing and imagining nice things will make us healthier. great video. thank you.

[@JustEye_La]

Truly, FASCINATING! Saved to my library. Thank-you.

[@esteehanvey5647]

4:13 is so true. I remember having an infection in a tooth when I was 20, and it made me so sick (in the middle of Covid lockdown), and my body started to shut down. Nothing mattered except the pain. I couldn’t tell you anything that happened that entire week because my brain was only focused on one task: solve the pain problem. I was not coherent.

[@robertschlesinger1342]

Interesting and worthwhile video. The advice regarding antihypertensive medications and a biofeedback means of controlling BP is risky.

[@jossylopes]

I learned that I was implementing these techniques unconsciously when dealing with stressful situations.

[@l0g1cseer47]

What a wonderfully, exemplary, insightful explanation!

[@invalidaccount6147]

Think about your happiest moment. My brain (whispers): It doesn't exist. 😐😑

[@ehsun365]

Watching Robert here is an amazing experience.

[@henri_payanbee4919]

Vintage Prof Sapolsky! Always awed by the clarity you bring when you unwrap complex concepts. . Also, communion with God ( prayer) with worship and gratitude for some minutes, in times of stress, does exactly that, .....and more.Shalom🙌

[@uptamistik]

The chimp paradox is an excellent book that talks about this in detail.. highly recommend it!

[@nameless674]

Thanks for that you do popular explain such the difficult processes in our brain. I also watch professor Savelyev`s lectures, he is neurobiologist

[@ANDROLOMA]

My lizard brain is suffering from a reptile dysfunction.

[@srikantankckc1305]

Very stable clear flow .triggers and also feeds.nice.🙏

[@Vanq78]

I am reading his book Behave currently. Fascinating so far.

[@LateButGreat]

The best book I've ever read

[@cabe2074]

Nicee, I'm about to read it

[@lolololen7389]

Which one mate?

[@hr0y563]

love dr. sapolsky! he has such a great way of breaking things down and explaining them. if anyone's interested, he has some really good lectures available thru Stanford's KZbin channel

[@ma271]

Awesome and well synthesised

[@vopall]

Fantastic piece. Thanks

[@maitreyadeepankar7437]

it's so nice to see Sapolsky after so long

[@yourcalmplace]

- I just want to let anyone who’s reading this comment know. I wish you great success, health, love and happiness! ✨

[@a.randomjack6661]

I only wish for wisdom. Success is a trap.

[@VeganSemihCyprus33]

Watch this CRUCIAL documentary on youtube 👉 The Connections (2021) [short documentary] 💖

[@SteveWondered-nt9vj]

Wisdom would be your success

[@patrickbrandon890]

❤❤❤

[@elenadrachyovs4151]

❤❤❤

[@user-cf4jj8gb8p]

I love it.. and the visuals were great!

[@julielabelle2783]

Great video, thank you for sharing.

[@maxd3028]

This what should be taught in schools! Recognizing how we operate first then anything comes next ...

[@AceofDlamonds]

Dr. Sapolsky really opened my eyes to how frightening people can be, namely when it comes to punishment. Punishment isn't just practical at this point. People have fully culturally colored punishment so that if certain individuals had sufficient power, they would choose just barbarically torture someone for a lifetime as punishment.

[@geetsehgal5649]

The more I see videos like this more my mind is blown away and not mainly/primarily because of just the video.

[@priyankthakur1445]

He is not smiling here, but his real nature can be seen in his lectures. Sweetest professor ever.

[@coryjeremiah4745]

That ended very nicely.

[@T80990]

It’s so interesting, the photo receptors in my eyes alert my optic nerve, and the nerve impulse is transmitted through nerve impulses, and is carried by Acetyl Choline. From one nerve cell to another, and it reaches to the brain where again it transmits from one neutron to another by dopamine which sends a signal back to my fingers and hands to essentially type. Crazy, a medical science aspirant.

[@F1RANGELF1]

Great channel 💯

[@davidaIano]

More of Sapolsky please

[@serano5023]

Best explanation of the brain ever! 😍

[@hsaqib8995]

Thank you for sharing :)

[@amgcadence7676]

Amazing 🙌🏾

[@learrus]

I do this at work to deal with being at work.

[@deveyous6614]

Wish I could zap just the anxiety part of my brain, wouldn't miss that.

[@Calligraphybooster]

It takes a little or a lot of training, but you should also embrace it. It is quite literally vital for your survival to know fear when that comes to pass.

[@sonkeschmidt2027]

Try breathing techniques like Wim Hoff breathing. They all work but you need to be disciplined with them.

[@NMPowerGamingl-aqwa_wiehed_me]

Smoke weed!

[@Psychol-Snooper]

Wow! You got Sapolsky! He's like the human equivalent of the Construct in The Matrix when it installs entire subjects directly into your brain... except you have to want it... and it's not fast... Yeah he's nothing like that... but still... You got Sapolsky!

[@davidottley2739]

😂 Thanks for the laugh!

[@GODHATESADOPTION]

Nobody has a lizard brain there is no such thing as evolution.

[@Psychol-Snooper]

@@GODHATESADOPTION It must be tough to not understand the things others find easy. :(

[@GODHATESADOPTION]

@@Psychol-Snooper thats my point. Its so easy to see through the bullshit.

[@GODHATESADOPTION]

@@Psychol-Snooper i mean evolution isnt science

[@ladonnabellavillalobos9627]

I don’t know how I discovered this on my own when I was a very young age, I was pretty much a loner, so I became really good friends with myself, and when I was fearful or in pain, I would just talk to myself and feel better by doing this at a young age. Any time a doctor would tell me something was wrong, I would tell him I was gonna prove him wrong and I did I’m not gonna mention every single story on here that my doctor cannot understand how I do this. I feel truly blessed to have such a gift. I do not trust doctors it’s not actually them it’s just they don’t, well they kind of remind me of preachers they treat you and tell you what somebody has taught them and a lot of things are very logical and doctors in preachers complicate things, let your inner child keep playing keep dancing keep singing keep enjoying your life the journey is amazing. It’s always a great time to be alive.

[@johnaugsburger6192]

Thanks so much

[@laaaliiiluuu]

Biofeedback reminds me of Wim Hof's teachings about how we can influence our physiology just with our mind and breath.

[@ArleneDKatz]

Thank you

[@faysoufox]

Amazing video

[@artelc]

Thank you for this card noise and cogent stepping off point in the most rudimentary insight into the human brain snd it’s functions and processees. I certainly agree with others that this enlightening information should be known and shared with all human beings at one point or another. Ignorance is definitely not bliss. Kudos Dr. Robert Sapolsky. This was like story time for adults. Manifesting the Nobel Prize for you sir.

[@theflowerhead]

Omg I love this guy! I watched him in a docu about baboons that surprisingly eye-opening to humans and stress. I love it. I wish he would go on a bunch of podcasts, but I'm glad he's here.

[@davidaIano]

You might be interested in his lectures on Human Behavioral Biology. Each lecture is an hour or two long and he teaches very elegantly, I think you'll like it, just look up "Robert Sapolsky Stanford University Lectures"

[@changeshifter4852]

@@davidaIano Yes, these lectures were very interesting!

[@ldeqwaaling881]

Love it!

[@mudithabandara8575]

Good one

[@Shihab1979]

Thanks 🙏

[@RealJandi]

Thank you, Zach Galafanakas

[@j.m.b5441]

Brilliant, I've seen some of his lectures, great professor and scientist.

[@Steve-zj4mv]

Who the hell did the subtitles and why are they about tornado facts?

[@VeganSemihCyprus33]

Watch this CRUCIAL documentary on youtube 👉 The Connections (2021) [short documentary] 💖

[@vinmorin]

Why?

[@gadohimself]

The music is really really really unnecessary, especially at this volume. At this volume it seriously distracts from the actual content. It can't even be considered "Background" music anymore at this rate..

[@HamishMacEwan]

The peaky plonky drowns Robert's light and smooth delivery. Turned on captions and muted the audio. It's that bad, thank goodness for the fix to the subtitling.

[@bigdaddyfilmmaker]

Love Sap. Great stuff.

[@joa1paulo_]

Sapolsky, you are brilliant! “Actions seems to follow feeling, but really actions and feeling go together; and by regulating the action, which is under the more direct control of the will, we can indirectly regulate the feeling, which is not. Thus the sovereign voluntary path to cheerfulness, if our cheerfulness be lost, is to sit up cheerfully and to act and speak as if cheerfulness were already there.”, William James

[@mothratemporalradio517]

0:05 now i have seen Big Think use the same stock footage of computer generated synaptic connections at least twice in the past 2 hours, my brain instantly wants to satirise the staged imagery in a mockumentary format, even as I'm quite enjoying these clips :) 🧠🖥️🖼️🎥

[@YannMetalhead]

Good video.

[@yashbush7145]

I m now really enlightend

[@prakharjain9801]

Subtitles are way ahead of its time. Maybe a video or two ahead 😂✌️

[@AidanNaut0]

Yeah whats up with the subtitles? i think they uploaded the wrong script

[@lolololen7389]

Im amazed how strong my reptilian brain reacted to the war pictures. Amazing way to explained.

[@sachinchaurasiya6947]

I think you are using wrong subtitle in this video.

[@sachinchaurasiya6947]

Please fix it

[@pgwasilewski]

You highlighted the ventricles when talking about the limbic system instead of the actual limbic system.

[@ladonnabellavillalobos9627]

I’ve had people actually make fun of me, because I am very emotional. When I watch movies, I know it’s not just what’s going on in the movies, but it’s some music in the background, why are some people a lot more emotional and some people it doesn’t even affect at all, or does it and they’re just hiding their feelings I’ve always wondered about this. I was a musical therapist most of my career and I loved it. I saw how people were getting healed by listening to music that made them happy and reminded them of a younger time in their life, it is so amazing what you can do with your brain, I know you can heal your body. I don’t need science to tell me this I’ve done it I didn’t learn it from anybody it’s just I have been in tune with my authentic self for a very long time, you might not believe in astrology, but I really think it’s true. I used to think it was a bunch of hocus-pocus nonsense but actually when you find out like your natal chart and your birth chart, it is amazing how accurate it is about you maybe they’ll do a steady on that one of these days

[@guvencagil]

Triumph!!! A totally awesome video and should be up for best short film at the Oscars. But of course, as the good doctor has said "The brain doesn't really come in three layers". That theory was disapproved at the turn of this century I think. It was discovered that mammals never evolved from reptiles. But the application is still effective. One could say that about astrology. Just because the earth revolves around the Sun and not the other way around doesn't necessarily mean the application isn't still effective. To repeat, Big Think should present this to the Oscars for best short film. Bon Chance

[@andro3041]

He seems so cool calm focused and collected

[@musictoflow-state8450]

Conscious active thinking = freewill now, what kind of thinking one's gonna have ... could depend on the context, wheter or not you've learn this possibility Very nice this awareness. Thx Prof!

[@olgaperez4705]

Curiosity stream has a similar piece, they call the middle brain the limbic system 'the monkey brain'. I liked that analogy. Reptilian brain, monkey brain and the cortex (they didn't have a cool name for it)

[@elgracko]

which layer would manage hormones?

[@mandysyoutubething]

Nice info. I always been told that as humans we don't have the wild instincts like animals do, feeling of being watched, earthquakes, sensing the weather etc. But i just think mosts too busy to pay attention. And I think that our brains also help in times of sickness and stuff as well since I was little I always hated school I wanted not to go and I wanted to be sick so I ended up getting pneumonia randomly. I had it for a month and after I heard my parents talking to each other about how the doctor said that if I didn't get better soon then I wouldn't and then they were crying so I said I'm not going to make them worry and I'm going to get better now and I did. Then I had to go back to school .... lol :|

[@santhosh.m]

2:13 how can I find background sounds?

[@sahin4805]

How it's not taken down by KZbin tho??

[@harshaasiwal2540]

Please lower the volume of background music. The rest of the quality of video is best in all senses!

[@aditimascarenhas5608]

More More MORE I NEED MORE SAPOLSKYYYYYYYY

[@emeritodizon5224]

An imagery of crossing a bridge is all that it takes to help me do biofeedback. It intriguely helps me understand that I can pass theprough the uncomfortableness with effort, by thinking of the bridge of data and me stepping through its cold temperature; which at least is based on how much effort is needed. It's an effective ideology.

[@johncloois3301]

Anthony Hopkins/Brian, "Head" Welch. Fits.

[@amanswami6896]

Thankyou thankyou thankyou for this video

[@rosejames2879]

Thanks~~~~

[@afthasulnikhilkhan8437]

brilliant

[@ShaunMahabeer]

Profound

[@maxischmidt1299]

Ok ok brain is interesting and all BUT: There is literally a "5" in his hair (left side) 3:33 for example

[@tanveersingh659]

I have an exam tomorrow and I am watching it as I haven't studied and now finding reasons to justify it