Your Screen Is Covered In Human Blood

[@vanderkarl3927]

I think the most striking thing about the images in this video is how noticeable the absence of foreign organisms is. The blood is very, very, VERY clean and homogeneous compared to, of course, the scummy pond water, but still it is very appreciable how well-maintained the environment is.

[@gavinyeomans]

@The Illusionist what??????

[@ginnyjollykidd]

Very appreciable? 10% per annum?

[@fandomguy8025]

Thanks to the good ol' immune system. Macrophages cleaning things up. Only the hardiest of bugs, like Malaria, can survive.

[@sodalitia]

Look carefully at 7:55

[@sShadowkate]

Good job, James.

[@FilipAlexx]

„Your screen is covered in human blood” pops up Stopped swiping for a moment

[@DylanMcMullen]

"Is this foreshadowing?"

[@blinded6502]

Now my fingers feel all itchy! Ew

[@moosemaimer]

Out, damned spot!

[@klosterdev]

This was a good video but that clickbaity title robs it of credibility imo

[@klosterdev]

I thought I was about to learn about how a tiny amount of human blood might end up on my touchscreen through osmosis or something

[@dissonanceparadiddle]

The live action netflix adaptation of cells at work is looking promising

[@PotionsMaster666]

🤣

[@kenjiro2676]

Code black is an awesome

[@JayAuditions]

💀💀💀

[@melonlord1414]

This video is clearly fake. There aren't even bleeding cells in that blood.

[@dissonanceparadiddle]

@@melonlord1414 I really wish they called it cytoplasm in the show. they do so much to be accurate that it's a surprising missed detail

[@dureremu5897]

I was terrified my screen was actually covered in blood for a sec

[@AnkhapostleDisciples]

Same, I'd feel clickbaited if this wasn't an amazing channel. 😝

[@thebraziliangardener8481]

me too thats why i clicked

[@thesillyhello]

my screen is covered in hyperrealistic blod pleas help

[@GoldenSun3DS]

@@AnkhapostleDisciples No, that's the definition of clickbait.

[@AnkhapostleDisciples]

@@GoldenSun3DS except it isn't, because the title is actually correct. The thumbnail was of blood cells and it was on my screen as I scrolled down KZbin, so... My screen was "covered" in human blood. It's a very smart title, clickbaity, but it's technically true in this case.

[@MontyBoosh]

4:47: "What are some of the pieces that make up our blood?" *shows close-up of insect larvae*

[@blinded6502]

And?..

[@sossololpipi9633]

"This is malaria."

[@Banana-wr8dq]

@@blinded6502 blood ideally shouldn't have insect larvae in it

[@blinded6502]

@@Banana-wr8dq Nobody's blood is perfect, you know

[@Bob-bs9ok]

@@Banana-wr8dq it's trying it's hardest you know

[@ivanrusnak5327]

My whole life was a lie. In my country, people say that Jan Janský, a Czech neurologist discovered blood types. However, now that I heard in your video, that it was actually Karl Landsteiner, I had to look it up and Jan Janský discovered it in 1906, while K. Landsteiner did it in 1901. Thank you for educating us more about the world. Keep it up!

[@itarry4]

I love the tone of voice you use for this channels videos Hank. The way you speak in such a calm, relaxed way really fits the subject matter.

[@ufodeath]

NO HE SHOULD TALK LIKE THIS AND SAY SMASH THAT LIKE AND SUBSCRIBE BUTTON

[@liammurphy2725]

@@ufodeath He don't need to if you are going to say it for him.

[@zo869]

Wait that’s Hank Greens voice??!! I’ve been binging this channel since it showed up in my recommended and had no idea!

[@tatecore]

This is the most honest clickbait title I've ever seen and I'm not sure if I'm upset or impressed.

[@GoldenSun3DS]

No, it's just clickbait. A high quality video does not change the fact that this was clickbait.

[@murielvaillancourt3855]

@@GoldenSun3DS the most ethical clickbait.

[@sneakycactus8815]

im mad as hell

[@thatdude1435]

Yea, technically some shady wording, but well played none the less!

[@Shaheen_Hassan]

Legitbait

[@Cliffdog01]

This was cool I'd love it if you did more of the Microcosmos of a human, like Demodex, dust mites, and other dead skin feeders.

[@stoneagephilosopher]

Yeah, agreed

[@InTheNameOfGodIHaveCome]

I think the microbiome of the human gut would be fascinating to see

[@aaronschannel373]

Yes a billion times!

[@kindtimetraveler]

NOOOOOOOOOOOOOOO!!!!!!!!!!!! 😱😱😱😱

[@Infernoraptor]

@@InTheNameOfGodIHaveCome so, you want a crappy episode?

[@jackhappens]

Starting at 7:39, you can see spiky echinocytes in the plasma, most notably one in the middle of the video! So cool!

[@sloth0jr]

Thank you! I was scanning the comments for someone who could point these out. Simply by comparative size, I knew that I wasn't looking at Coronavirus, but I sure didn't know what they were. And now I know there's things called echinocytes!

[@HayTatsuko]

Was wondering what the heck those were! Thanks!

[@BTNE_Videos]

It's just an abnormal red blood cell, nothing to worry about.

[@blimibarker4089]

I saw a bunch of these when observing my own blood and freaked out at first, then did some googling and found that it's probably just a red blood cell drying out on the slide (due to exposure to air).

[@GLITCH_-.-]

Oooh, that's what they are! I just wrote a comment asking about them. :) Thank you!

[@mixiekins]

I hope James can get a sample from someone with sickle cell, this episode reminded me of that and now I'm looking it up to see if all or just a portion of the cells are crescent.

[@mixiekins]

ok so update: it's only some that are crescent, and a lot of the samples have howell-jolly bodies floating around with them, too! I really hope there's a little series on blood, because now I'm really interested, like what mechanism caused the cells to clot in some footage whereas they hadn't clotted in other scenes. Maybe we can see bone marrow, too!

[@SterlingCat03]

@@mixiekins Actually, it depends on the genotype of the individual. If they have only one sticker cell gene, only some of their blood cells are affected, but if they have two, all of them are.

[@42_10_]

i know right but again I just assumed maybe because of the microscope defocusing ? And again assuming James is caucasian, that's not common. But low amount of sickle cell not dangerous.

[@XhanAnimations]

As someone with sickle-cell trait, that was the first thing on my mind! Maybe there'll be an episode the body's defenses where they could go further into the topic

[@localnyraccoon]

Seeing the physics of these tiny cells in 1080p 60fps is so great. I can't express how much I love this content.

[@shridharpandeyofficial]

Well... Its biology😂

[@sxvrd861]

This isn't exactly what I wanted to hear but damn I'm watching this video

[@SJKlapecki]

Hm, terrifying title. You have my attention.

[@fluffysheap]

What, everyone's screen is covered in blood? All along I thought it was just mine.

[@meatballg8655]

“Your screen is covered in human blood” The serial killer watching this: “yeah I know alright I didn’t cover enough of the room in plastic sheets it’s gonna take ages to get it out of the carpet”

[@frogz]

@Eastern fence Lizard "oh no... i thought i got it all LAST time"

[@noahpage7459]

Alright Dexter

[@johngallagher9151]

This is some Family Guy flashback shit

[@meatvortexgaming7134]

BLOOD FOR THE BLOOD GOD

[@addisonchow9798]

*EXTERMINATUS FOR HERETICS*

[@jhoughjr1]

skulls for the skull throne

[@TheTenthBlueJay]

E?

[@TheColumboGaming]

𝑺𝑲𝑼𝑳𝑳𝑺 𝑭𝑶𝑹 𝑻𝑯𝑬 𝑺𝑲𝑼𝑳𝑳 𝑻𝑯𝑹𝑶𝑵𝑬

[@sidneyswerissen3910]

They spilled the blood of the innocent for this clip. The blood god is happy with this one !

[@nerdymaple2637]

This was a rather threatening notification to get. Even after I saw who uploaded it, I was still a little unsettled. Still, regardless of the KZbin notification equivalent of a jumpscare, this is still a really good video as usual!

[@TheCellpool]

THIS PLEASES KHORNE BLOOD FOR THE BLOOD GOD

[@adtrlthegamer7449]

Lol

[@TheExalaber]

Armok?

[@rockettime0358]

SKULLS FOR THE SKULL THRONE

[@camramaster]

MILK FOR THE KHORNE FLAKES!

[@Bob-bs9ok]

@@camramaster MARSHMALLOWs FOR THE BOWL OF CEREAL

[@matanuskabutler7566]

Love how I spent 3 weeks trying not to do a report on Antony van Leeuwenhoek when I was 10 and now I spend my mornings watching these when I'm 30...

[@1865Highst]

You’re not alone. Public school doesn’t teach information primarily, it teaches kids how to “school”. Children learn how to please teachers, how to respect authority, that they are always recorded and graded, etc. Many children instinctively rebel, but not generally against the material, which is usually rediscovered as adults under conditions of liberty whence it is fascinating and illuminating. -sincerely, a public school teacher.

[@rebekahcleary6883]

This video is stunningly beautiful. I am a biochemist who used to process RBCs/serum/analytes for use in hospitals, laboratories, and screening kits. Today was the first time I was able to examine my own RBCs. Thank you both for the work that you do here.

[@myrmatta1]

3:07 Fun fact: Hagfish, the most primitive group of living vertebrates, actually have an open circulatory system! source: my Vertebrate Zoology textbook

[@ShirinRose]

When I was little, before I'd learnt about blood vessels, I imagined that people have what I have just learnt is called an open circulatory system 😅

[@wrasse1155]

We are born of the blood, made men by the blood, undone by the blood. Our eyes are yet to open... Fear the Old Blood

[@winnerbytes5898]

Can even clearly see the immune cells in the blood, impressive!

[@benjaminforman8901]

As soon as the blood came on screen, I immediately started looking for leukocytes. Recovering "Cells At Work" junkie, here. ✋😁

[@bcjmythical9576]

Hello

[@bcjmythical9576]

Just recovered from BLACK

[@benjaminforman8901]

@@bcjmythical9576 lol The end of last episode of BLACK: "Yaaay!......oh.......oh, no...."

[@luisaparodi8571]

I was expecting to know more about hemocianyn and Horseshoe crabs (Limulus polyphemus)

[@grey3247]

Does this mean I can use my screen in the blood sacrifice?

[@pokegard]

I think you need to borrow some screens from other people to get enough, but go for it

[@mrowczansodu5021]

Great video! Red blood cells look amazing under the microscope. I would love to hear more about cells of our immune system. I don't really know how they look like in real life.

[@potatopilot16]

I don’t like this information but I’ll watch anyways

[@spineyswordfish]

Hank, your voice is so relaxing! I could listen to this for hours. You're the new Lofi!

[@tivviemivvie1162]

I’m so disappointed that my screen isn’t actually covered in my blood

[@octopushands6923]

10 out of 10 insightful commentary about the microcosmos. Thank you.

[@MagicPlants]

I like when you read like you're just calm (like this) and not like you're high on mdma or something (like most other videos). Makes it much easier to relax too. Somehow comes off condescending the other way.

[@6Twisted]

I'd still like to see a video on the effects of different anti-microbials like soap, bleach and alcohol.

[@snowkracker]

One of the coolest channels on KZbin

[@gardenrose264]

To deny creation is inexcusable.... The creator deserves respect...

[@kyosukeplays]

Blood on my screen? That’s just me coughing while trying to watch a microcosmos video.

[@ChainsawDNA]

I noticed that the blood cells seemed abnormally small, given the length scale on the lower right of the video. I don't think James' cells are abnormally smaller than the typical RBCs that have a diameter of 6 - 8 μm. Rather, I think the length scale is off.

[@crackedemerald4930]

Yea, they look extremely small, maybe the treating made them shrink?

[@ezraclinton6248]

Love the quality of these videos, bravo!

[@1234j]

Well, THAT title got my attention. Instant click.

[@UVAAAAAAAAAAAAAAAAAAAAAAA]

I love blood so much, i don't think i could live without it

[@pink2391]

Love you guys ! keep up the good work :)

[@nosrah9660]

Titles the video like this so no one can escape the thought.

[@TheRealFlenuan]

As an enthusiast of history and prehistory I love that you mentioned the four humors ^^

[@NewMessage]

You.. you... can see my scree... oh.. oh I see.. Ha. Whew! Thought I was gonna have to get the hacksaw out again.

[@satvikkarkera4542]

Thank you for taking us on a journey around the microcosmos. Love your content.

[@Noughtgate]

Every time Hank or Deboki says "microcosmos," I get something between chills and endearment, hard to describe. I've been Pavlovd!

[@feralbluee]

funny! i love the way you thought about it :) 🐶🌷🌱

[@NiffirgkcaJ]

That title disturbed the hell out of me, but it's interesting how it clots, the longer it's exposed to air.

[@ArthurFreitas96]

You guys again... nice work. Thank you. Much love.

[@crelos3549]

The title: Your screen is covered in blood Me: How did you know it?

[@user-vn7ce5ig1z]

• Pft, my _Walls_ are covered in human blood, my blood. Stupid mosquitoes. 😒 • I'll have to watch this again because I missed the part that explains the title. 🤔

[@originsdecoded3508]

dude, i came here to learn about my screen, and ended up learning more about blood.

[@nonnahs918]

Thank you James for taking one for the team!

[@starfydusty]

James has literally put his blood, sweat and tears into this series for us, huh?

[@romajimamulo]

At least, the first one. I'm not sure of the other two

[@olmo4767]

Excellent videos! could you make a video about the inhabitants of the human mouth? it would be very educative and would motivate many people to improve their oral hygiene. Recently it has been discovered that many species of spirochetes can infect the space between the gums and teeth, and travel to many organs and tissues across the body from there, taking part in many diseases such as heart disease, arthritis, atherosclerosis, diabetes, Alzheimer's, etc . Spirochetes are also cool to see in the microscope, as they're very mobile

[@rotten2guts]

Finally showing the human cosmos! Kudos!

[@archive6094]

Wipes screen frantically

[@michaelpoulimas4011]

Your calm voice helped me sleep last night. Thanks!

[@Romanticoutlaw]

the music choice, as always, perfectly matched to the video

[@atomixfang]

this channel is a gold mine.

[@RainAngel111]

Wish they'd gone into a little more detail on what we're seeing on these slides. Some of them look like 100% red blood cells but there are a few cells in there that aren't the right shape for a red blood cell. Are these neutrophils?

[@nyanarchy]

poikilocytosis is variation in the shapes of red blood cells

[@E.Pluribus.Unum.]

Loving the new music Andrew Huang!!

[@E.Pluribus.Unum.]

Wow didn’t even know it was you wts...

[@joshheath1118]

I was expecting to find out my phone screen has a daily blood build up, thanks for the video Hank!

[@blimibarker4089]

James's red blood cells look a bit pointy at the ends.

[@sypeiterra7613]

You had me mentally screaming for a few seconds there

[@reinux]

I keep forgetting that the Greens are from the golden age of clickbait.

[@robertgaines-tulsa]

When a name ends in an s, you generally just put an apostrophe without an additional s. That's how I learned it in high school over twenty years ago. Things might have changed since then. It represents and old English form of possession where they put his after the name as in "James his". The apostrophe represents the missing "hi" or "his" in names ending in an s.

[@zackhostetler5175]

I don't know how this channel hasn't reached a million subscribers.

[@tengkualiff]

I thought he was gonna talk about our phone screens lol

[@Wilsignu]

Call Guiness world records, At 2:25 the Daphnia 200x has a skin pattern showing what has got to be the smallest example of a naturally occurring Hexagon pattern, ever discovered. And the poles of Saturn are the largest.

[@UltraBran]

Because the more scientifically accurate title “the screen we examined - ours - is covered in human blood”, is too sus...

[@A129WOLFY]

for some reason i thought the title meant that my hands just leaked blood cells onto my phone without me noticing somehow?

[@limiv5272]

Awesome video, thanks! I was hoping you'd zoom in on one of the white blood cells at some point. Maybe in another video?

[@wantedpwner]

I am donating my screen to people that need it.

[@judithwalker3600]

An explanation of what all the different things in Jame's blood are would seem to be a no-brainer!

[@nyanarchy]

poikilocytosis is variation in the shapes of red blood cells

[@BubbaLoob43]

this is amazing to watch, i love to find out the leucocytes as well!! it would be cool to see a comparison with the blood of an animal that is not a mammal so we can see the nucleus on their red blood cells!

[@thairinkhudr4259]

3:57 Muslim Scholar representation! I was already in love with this channel, now you're making me fall head over heels! 💗💗💗

[@bluesioux9538]

The opening scenes of James' blood flow looks like the typical rush traffic every morning, with the usual clogs...

[@RahulMeena-zt1py]

Please do more, show us more, you are doing very good work.

[@k.s.k.7721]

One correction - William Harvey practiced vivisection - opening up live dogs, cats, and other animals without anesthesia. Yes, important work, but at the time it was felt that the screams and obvious agony of the animals in question was some sort of "automatic response", and they couldn't "really" feel pain. And even if they did, it was not a big deal.

[@graymanmedia]

Yeah, kinda makes you wonder how Ibn was able to the same thing with no anesthesia either.

[@Noughtgate]

0:47 i was half expecting him to say it in the jokingly "grossed out" voice

[@McHeisenburger]

“Your screen is covered in blood” Me who just stabbed someone at the computer: oh no

[@GordonFreechmen]

Holy smokes, that opening is hypnotic as heck.

[@brunoberganholidias5790]

At around 8:05, I can see a "spiked" cell moving close to the top of the screen. What is it? I'd assume it's a white blood cell, but what type? Similarly, what are the blue-ish cells?

[@SISSYPUSS]

I think it's a basophil or eosinophil. Granulocytes normally show granules, the slide seems to be methylene blue that hides the nucleus. All the tiny round cells with a depressed center are red cells, the others are wbc's.

[@nyanarchy]

poikilocytosis is variation in the shapes of red blood cells, the spiked one is an echinocyte

[@michagrill9432]

What?!?!? KZbins notification didnt came one week late for once! 🤣

[@kateaveryavery1342]

Lol XD

[@seanmcfadden8989]

This is the best content on KZbin

[@Vanpotheosis]

60 fps makes this so smooov

[@jules3078]

I couldn’t stop thinking about the title of this video since it was posted a month ago so here I am, watching it.

[@Shaden0040]

Artemia are also known as brine shrimp or sea monkeys.

[@SuperLifestream]

You're telling me until 1924 we all thought blood was a by product digestion

[@SuperibyP]

I was extremely lucky as a teenager to get an old surplus NHS microscope through my mother, who works in my local hospital's microbiology department. This was the first thing I did, except I literally did cut myself using a broken slide. Absolutely blew my mind.

[@bitterlemonboy]

Self-harm is no joke

[@GLITCH_-.-]

What is that red spherical thing with bumps that looks like bad depictions of the coronavirus? (7:50 In the middle of the picture, slightly more to the top, moving upwards at around 7:56) It's red so it must be a red blood cell, right? The white blood cells look different, as do all the other red ones. Actually I can see many more of these. Is that some kind of mutation/disease? Edit: It's either echinocytes or acanthocytes.

[@timothybradford4]

Thank you mr. Green.

[@ghoulishtoad]

This is why Hank Green is the only cool Green brother

[@Scavenger82]

Hank's narrating cadence & intonations remind me very much of Garrison Keillor from the radio show A Prairie Home Companion.

[@jaypearce6743]

I love it! You are a poet and a graceful fellow.

[@localnyraccoon]

I wish this was the voice that taught me things in school.

[@Smashdreamm2]

Two things: 1. It is really cool to see how red blood cells are able to shape shift to get around obstacles 2. Really cool to see the WBC moving in the sample on the screen

[@SpinDip42069]

8:05 does anyone know what that "virus-shaped" thingy is at the topish-middle of the screen? It is RIGHT above the Skillshare logo when that comes up, still around the horizontal centre of the screen.

[@nyanarchy]

yes, it is an echinocyte

[@ablinkin65]

And now I know what Hank sounds like when using THC.