How Is a Memory Stored Inside Your Squishy Brain?
Avoid your blindspots and get every side of every story at https://ground.news/nutshell. Subscribe for 40% off unlimited access.
Brighten your space with our new human-made & high-quality Neon Framed Art Prints: https://shop.kgs.link/faves 💛 Shop these and more of our handpicked favorites in the kurzgesagt shop!
Sources & further reading:
https://sites.google.com/view/sources-memory/
Memory is one of the strangest abilities you possess. Your brain uses an incredibly complex biological system to preserve moments from your past that no longer exist, allowing you to revisit experiences from years ago. But memories are not always recordings of reality. In fact, every time a memory comes under the spotlight of your attention, it can melt and change a tiny bit.
What exactly is a memory, how is a moment in time stored inside your brain, and why does remembering something slowly rewrite the story of your life?
OUR CHANNELS
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
German: https://kgs.link/youtubeDE
Spanish: https://kgs.link/youtubeES
French: https://kgs.link/youtubeFR
Portuguese: https://kgs.link/youtubePT
Arabic: https://kgs.link/youtubeAR
Hindi: https://kgs.link/youtubeHI
Japanese: https://kgs.link/youtubeJA
Korean: https://kgs.link/youtubeKO
HOW CAN YOU SUPPORT US?
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
This is how we make our living and it would be a pleasure if you support us!
Get Products designed with ❤️ https://shop.kgs.link
Join the Patreon Bird Army 🐧 https://kgs.link/patreon
DISCUSSIONS & SOCIAL MEDIA
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Instagram: https://kgs.link/instagram
TikTok: https://kgs.link/tiktok
Reddit: https://kgs.link/reddit
Discord: https://kgs.link/discord
Twitter: https://kgs.link/twitter
Bluesky: https://kgs.link/bluesky
Facebook: https://kgs.link/facebook
Newsletter: https://kgs.link/newsletter
OUR VOICE
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
The kurzgesagt voice is from
Steve Taylor: https://kgs.link/youtube-voice
OUR MUSIC ♬♪
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
700+ minutes of kurzgesagt soundtracks by Epic Mountain:
Spotify: https://kgs.link/music-spotify
Soundcloud: https://kgs.link/music-soundcloud
Bandcamp: https://kgs.link/music-bandcamp
Youtube: https://kgs.link/music-youtube
Facebook: https://kgs.link/music-facebook
The soundtrack of this video:
SoundCloud: https://bit.ly/4enwShi
Bandcamp: https://bit.ly/4fJPfiY
If you want to help us caption this video, please send subtitles to subtitle@kurzgesagt.org
You can find info on what subtitle files work on YouTube here:
https://support.google.com/youtube/answer/2734698?hl=en-GB&ref_topic=7296214
Thank you!
🐦🐧🐤 PATREON BIRD ARMY 🐤🐧🐦
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Many thanks to our wonderful Patreons (from http://kgs.link/patreon) who support us every month and made this video possible:
amen_ra, Artem Gr, Carolina BS, Chris Fiebelkorn, DSM, Jaron Lugtenburg, Jeff Perkins, Lissa M, Lucas, Maniac3d, Manvendra Singh, Matt Oyer, MilchCookie, Mitchell Hayen, Redcheshire, Shane Maher, Sir Edward, SPeterman, Sxy Vixen, Thibaut Dutartre, thisisdream, Declan Oyer

@kurzgesagt
June 16, 2026 at 7:26 pm
Avoid your blindspots and get every side of every story at https://ground.news/nutshell. Subscribe for 40% off unlimited access.
@Giovanni00831
June 16, 2026 at 7:26 pm
but what about people who have an eidetic memory?
@BUTTER_INSIDE_AN_M4_SHERMAN
June 16, 2026 at 7:26 pm
Condescending, much?
@nicolasmccarter5395
June 16, 2026 at 7:26 pm
That's something I never considered about therapy before! Wow. That's actually quite powerful to think about… or remember about 😉
@mateussalviano3439
June 16, 2026 at 7:26 pm
12 years ago I remember very clearly to be at work awaiting for tasks while browsing youtube when I got recommended "The History and Future of Everything — Time" and not long after I was really hooked in your channel.
@olegshevchenko5869
June 16, 2026 at 7:26 pm
I think this is the reason my memory is so good – I'm way too emotional. And the way my memories are emotionally charged causes me to seek to replay them all the time.
@LeeAtkinson98
June 16, 2026 at 7:26 pm
Next game you make is a brain building game pog?
@bhangela
June 16, 2026 at 7:26 pm
really great video yall!
@charliebaby7065
June 16, 2026 at 7:26 pm
that was the pixies, right?
@JRLSciences
June 16, 2026 at 7:26 pm
When I'm coming out of the shower, I often ask myself :
-Wait. Did I actually rince my body after soaping myself ? I don't remember it.
@hydrus6782
June 16, 2026 at 7:26 pm
"Dream, not of what you are but of what you want to be"
Alright, now Kurzgesagt need to make a video about Warframe ! They most likely won't but hey ! I just need to alter this memory until they do (in my head) !
@awerries
June 16, 2026 at 7:26 pm
the music is too loud and very distracting. speech is too fast.
@MooseBoys42
June 16, 2026 at 7:26 pm
7:32 dicaprio_pinting_at_tv.png
@mohamedi.elkhuja151
June 16, 2026 at 7:26 pm
Would love share my gratitude to your channel, it really helped me change my life and expand my imagination and change my perspective, been a follower for many years and shared it to multiple friend and kids i teach and also their parents!!!!
Keep up the enlightenment and good work Kurz! ❤❤
@Oscar23Studios
June 16, 2026 at 7:26 pm
9:14 Could that be why we dream?
@ImpulsiveBloop
June 16, 2026 at 7:26 pm
My brain is weird. I don't remember episodically. There are a few snapshots, but that's about it.
My main memory works on emotional association towards specific sensory inputs. No memory gets attached to the association, it just forms one day and sticks.
I've also found that while I struggle to remember specific events and facts from memory, I can retain facts so long as I put logical reasoning behind it. That is to say, instead of remembering the fact itself, I teach myself how to conclude the fact based on reasoning.
@tomaszkubala6266
June 16, 2026 at 7:26 pm
That last bit at the end was very important for myself and others that I know.
@alanduae7986
June 16, 2026 at 7:26 pm
What about our own names and facts about ourselves and the world that will likely never change inside us? Why do those memories not change over time?
@SteffDev
June 16, 2026 at 7:26 pm
that explains why I can't remember most of my school days, I used to stay up all night playing video games…
@dobbi6083
June 16, 2026 at 7:26 pm
Not sure if it's the reason, but during a good chunk of my studies at university i had just 4-5h sleep a night during week days. My whole memory feels like it's foggy. So many events that i know where and when they happened and yet it feels like i wasn't there, cause i can't really remember going through them
@012vinc
June 16, 2026 at 7:26 pm
How can you say that the human brain is the most complex thing in the universe, even though sperm whale and orca brains exist? >:(
@MicheleYT-m6u
June 16, 2026 at 7:26 pm
This is why you should never trust your memory
@DRIVECLUBistimelessPS4
June 16, 2026 at 7:26 pm
13:35 hey @kurzgesagt this artwork would look even more epic if this was made as lenticular art !
@BariumCobaltNitrog3n
June 16, 2026 at 7:26 pm
"Forever" does not apply to anything human.
@shivamuniyal4935
June 16, 2026 at 7:26 pm
BGM 🔥🔥
@CaptainMisery86
June 16, 2026 at 7:26 pm
The thing I hate most about the brain is that it is constantly doing some of the most complicated physics problems, but if you put the most basic physics problem in front of me, it looks like gibberish and is basically impossible to solve
@sirping
June 16, 2026 at 7:26 pm
Very great video. I was just studying this for an exam and it took me a long time to get a grip of it. Watching this video literally strengthened my Assembly about this. We need some neurobiology merch!
@kenviktacs
June 16, 2026 at 7:26 pm
came for the video, stayed for the soundtrack
@xeractus
June 16, 2026 at 7:26 pm
Memories are the "based on a true story" tales that we tell ourselves.
@auphonium
June 16, 2026 at 7:26 pm
This was beautiful, please keep making videos like this forever ❤
@hermes_she-ra
June 16, 2026 at 7:26 pm
okay but about the studying thing, studying teaches me the new vocab, sleeping doesnt
@YT2843-k1l
June 16, 2026 at 7:26 pm
ground news a fake
@MrJeffTTV
June 16, 2026 at 7:26 pm
Intristigly mdma had me have such a drastic character shift that it scared me, memories from before that are so far away as if they didn't happen to me but it's a story I heard. Also lsd was Intresting as it was not inducing this drastic memory adjustment (at least that's how I remember it). Just sharing, all be hrla carefully with drugs
@Fennecbutt
June 16, 2026 at 7:26 pm
So witness testimonies aren't reliable?
Huuuuuh who could've knoooown… 🙄
@Cyan42352
June 16, 2026 at 7:26 pm
I find this subject very interesting, because my experience of memories is very different. Granted this is primarily my personal account, but I've verified it at numerous points throughout life. While parts of my memory are hazy, not quite clear, and may be missing visual details. The core information tends to always be intact, and I'm not talking about the things involved in it, but also the details. I can recall things quite accurately even if I can't recall the visual information accurately. As a result I can remember data extremely well, and even recall what even I would consider an insignificant memory. I remember the names and curriculum of every teacher I've ever met even when I don't remember their faces exactly, though some I do remember and they are certainly stronger than others. I've recalled information that most people forget a week later, even if it was just in passing and held very little importance. In a way it's kind of a burden because I can remember things so accurately that it sometimes gets in the way of learning new things, almost like a habit that won't go away, despite never actually forming a habit around it. I guess a way of putting it, is that I formed a habit of accurately recalling things or something to that end.
@TheRedRanger123
June 16, 2026 at 7:26 pm
Lost like tears in the rain, but I guess if you see C-beams glitter near the Tannhauser Gate, you will remember.
@Sirtan
June 16, 2026 at 7:26 pm
I hope we never truely hope we figure out memories. Conpanies would plant advertisements in our past
@battdriver7553
June 16, 2026 at 7:26 pm
I liked because you said my brain was weird madness….I've never felt so understood😅
@ozpsychosis
June 16, 2026 at 7:26 pm
I wish memory didn’t exist. I wish to forget
@YatzelTheYes
June 16, 2026 at 7:26 pm
2:48 BLAHAJ DETECTED
@LazyButWise
June 16, 2026 at 7:26 pm
You guys should do how porn addiction works as this is kind of related
@catcatcatcatcatcatcatcatcatca
June 16, 2026 at 7:26 pm
My brain can come up with examples of arbitary things much more complex than itself. I tried and failed to define a temporaly bounded criteria for meaningfulness such that my own brain could by definition be the most complex meaningful thing within such bounds, but I failed to find a definition where my brains own encoding and processing of information could by definition be greater than information stored outside my brain (ie: written down or made available later).
Which is weird, right? Surely memories are in some sense superior to tool-based recall? Except that both take time, and processing of memories itself takes time. A less complex process that would have the same outcome would do just as well.
From that argument, I suppose the complexity of human brain in itself is not meaningful. And because more complex, meaningless things exist, the intuitively correct sounding argument that at least from our perspective our own brain is the most complex thing in the universe doesn’t seem to hold. We don’t actually profit from that complexity, it just happens to be necessary for our brains to function as they do. If a less complex thing could plausibly do as well, why should one place any value in the complexity itself?
@Juniperrrrrr
June 16, 2026 at 7:26 pm
8:35 4 weeks since my dog Mabel passed. I miss you girl.
@jvingghost413
June 16, 2026 at 7:26 pm
It’s said that every time you recall a memory, it degrades
@SamAdams-cw7ew
June 16, 2026 at 7:26 pm
This was beautiful!
@GemstoneDreams
June 16, 2026 at 7:26 pm
The main thing I learned in this video is that theres a section in my brain called the Konfuzgesagt that stores the Kurzgesagt videos I do not understand… perfect.
@JoshTigerheart
June 16, 2026 at 7:26 pm
One thing I wish the video covered was how the long term storage worked more. Like, on rare occasion, I can be minding my own business and then suddenly experience a memory of a thing I have literally not remembered or thought about in a decade or longer, like some arbitrary event or experience from when I was a kid.
@1Animeculture
June 16, 2026 at 7:26 pm
Meditations loosens those connections to "help" them reshape and reform 🙂 When ya old, new connections are more difficult to form, meditation can "force" em to loosen so that you can, indeed, teach an old dog new tricks 😉