Cell vs. virus: A battle for health - Shannon Stiles

  • Published on Apr 17, 2014
  • View full lesson: ed.ted.com/lessons/cell-vs-virus-a-battle-for-health-shannon-stiles
    All living things are made of cells. In the human body, these highly efficient units are protected by layer upon layer of defense against icky invaders like the cold virus. Shannon Stiles takes a journey into the cell, introducing the microscopic arsenal of weapons and warriors that play a role in the battle for your health.
    Lesson by Shannon Stiles, animation by Igor Coric.

Comments • 1 372

  • Annika Kosenkranius
    Annika Kosenkranius 15 hours ago

    Look at his hand 3:05

  • Ryan Bai
    Ryan Bai 2 days ago


  • shramika kirtikudav
    shramika kirtikudav 2 days ago

    hey i u all r science student

  • TheDark ARtist
    TheDark ARtist 6 days ago +1

    Is that how it really looks ?

  • SirButtFux
    SirButtFux 8 days ago

    you easily explained so much for me thank you

  • Eilrahc Jeanzy A Casiñas

    I didnt know that i have a miĺitary personnels inside my body. Haha

  • Rourou Xiao
    Rourou Xiao 9 days ago

    The special cells that attack germs (pathogens) are part of your immune system. These are your immune cells: macrophages, dendritic cells, basophils, eosinophils, monocytes, neutrophils, mast cells, natural killer cells, B cells, helper T cells, killer (cytotoxic) T cells, suppresor T cells, and memory T and B cells.

  • Mary BCFHS
    Mary BCFHS 9 days ago

    Bodylandia's glorious panzers :v

  • TheGenesis1914
    TheGenesis1914 9 days ago

    0:34 Come in water! Bye Carbon dioxide! DIRT YOU CANNOT COME IN!

  • Bip901
    Bip901 10 days ago

    Phew, no wonder I start sweating simply by staying alive

  • Game Twigs
    Game Twigs 12 days ago

    Wow its Lige noggin al over again usclip.net/user/lifenoggin

  • My channel profil picture is my brothers face

    Cell-Armored tank Virus-Mike from monsters ink

  • Nickolas Duschinger
    Nickolas Duschinger 14 days ago

    This video explains so perferct bruh

  • mohamed ouhibi
    mohamed ouhibi 14 days ago

    war,war never changes.

  • Mars
    Mars 14 days ago

    Wait so we have tiny computers in our cells?
    Whats the point to buy computers then?!

  • Jacob Lozano 44630
    Jacob Lozano 44630 16 days ago

    Cell vs Virus greatest battle since Cell vs Gohan.

    RBG GAMER 17 days ago +1

    The way you animated it was great.I study in 9th class and I am having this lesson so it was useful for me

  • Ölümlü Vampir
    Ölümlü Vampir 19 days ago

    Neden biyoloji hocaları bu kadar zorlaştırıyor bunu göstersin yeter

  • Captain Pålegg
    Captain Pålegg 20 days ago

    Suppose my enzymes are as lazy as I am, and they just print off the first section of DNA they see (the eye color gene, for instance) instead of actually looking for the antibody blueprint?

  • Just Nothing
    Just Nothing 20 days ago

    Our body is litterally a fortress

  • The Canine Nutritionist

    Jenner not only shared his knowledge through published literature, he also shared the vaccine itself, giving samples to other physicians and anyone else who requested it. Use of the cowpox vaccine grew as those who received it from Jenner passed it on to others. In 1800, Dr. John Haygarth was responsible for the introduction of the vaccine in the United States when he sent some of Jenner’s cowpox vaccine to a physics professor at Harvard University. After introducing the vaccination in New England, professor Benjamin Waterhouse convinced Thomas Jefferson to try the vaccination in Virginia. It was this contact between Waterhouse and Jefferson that led to the establishment of the National Vaccine Institute and the implementation of the United States’ first national vaccination program.

  • Tad Der
    Tad Der 23 days ago

    Lol there is like a health factory inside us

  • Kuek Tai zhui
    Kuek Tai zhui 24 days ago

    Don’t even animate you animation sucks

  • the nightmare tornado aka the supernova eye

    Q: what if i have no cells due to cancer
    A:you dead

  • Ninja You don’t need to know my last name

    This could be false

  • Chuck Norris
    Chuck Norris 27 days ago

    How amazing our body is. Almost perfect system

  • Raghav Saptarsh
    Raghav Saptarsh 28 days ago

    It's 100 trillion isn't it?

  • gungamer2009
    gungamer2009 28 days ago

    STAB STAB STAB!!!!!! the bacteria died before he died he sung *hello darkness my old friend i've come to talk with you again*

  • Abinash Rabha
    Abinash Rabha 29 days ago

    These guys should be on tv every day!! I love it!! 😍 😍 😍 😍

  • Prabhat kiran
    Prabhat kiran Month ago

    0:36. CO2 looks really pissed off.


    Best ed. Video ever I had watched..

  • Milaflor Nardo
    Milaflor Nardo Month ago

    If you're sick that means you're body is fighting the infection

  • Mister Hyena
    Mister Hyena Month ago

    Bacteriophages are helpful

  • Garfield Budd
    Garfield Budd Month ago

    What happens if a stronger virus/bacteria/prion attacks.

  • xX_ F1tzjohn _Xx
    xX_ F1tzjohn _Xx Month ago

    Now somebody make a game about this

  • Emperor Jorge
    Emperor Jorge Month ago

    2:59 anyone remember that meme were they said this was the powerhouse of the cell?

  • Ali Abbas
    Ali Abbas Month ago

    I lost this video initially ...and I am soooooo glad I found it back today...subscribed too

  • KOF 9977
    KOF 9977 Month ago

    this is kinda like a cartoon

  • Ayah Shayeb
    Ayah Shayeb Month ago

    I love how the Trojan horse was involved lmao

  • Freshtale Sans
    Freshtale Sans Month ago

    3:37 sir you look paralized

  • Griffin Simpson
    Griffin Simpson 2 months ago

    no.the nucleus does not contain information;it protects the nucleoleous, which contains information

  • Justin YONG
    Justin YONG 2 months ago


  • Tanya Nguyennn
    Tanya Nguyennn 2 months ago

    My cells better kick my colds astroid

  • piggy oink
    piggy oink 2 months ago

    sounds like siri

  • varun raju
    varun raju 2 months ago

    Wonderfully engaging visual analogy!

  • Jacob Pledger
    Jacob Pledger 2 months ago

    Who would win?
    This entire video
    One hexagon virus boi.

  • The big OOF
    The big OOF 2 months ago

    Next time you clap your hands you kill many cells

  • Super_10
    Super_10 2 months ago +1

    The more you know.

  • Space Gamer
    Space Gamer 2 months ago

    I have a whole different thing I need to worry about asthma I have it

  • Ghilled Kid
    Ghilled Kid 2 months ago


  • doublegang gamers
    doublegang gamers 2 months ago

    so our cells are alive?

  • David Dobovšek
    David Dobovšek 2 months ago +1

    Virus is not organism. That is important so video is not correct.

    I'm from Slovenia. Sorry for grammar.

  • Flare'N'Friends
    Flare'N'Friends 2 months ago

    The mitochondria is the powerhouse of the cell

    NUCLER PHANTOM 2 months ago

    This is the nnext marvel movie 😂😂😂😂

  • Crunchy Pochi
    Crunchy Pochi 2 months ago

    I love this!

  • The ThunderFamily
    The ThunderFamily 2 months ago

    It’s a mini mini mini war!!!! We must help we must eat!!!

  • Jackson zombiekiller
    Jackson zombiekiller 2 months ago

    The only reason we breathe oxygen

  • The MeatBall Empire
    The MeatBall Empire 2 months ago

    Dint know there was castles in my body :/

  • Foxy The Pirate Fox
    Foxy The Pirate Fox 2 months ago

    Cool animation and educational

  • Lloyd LAU
    Lloyd LAU 2 months ago

    0:33 should that be O2

  • Annie Lim
    Annie Lim 2 months ago

    T-B Cells Are AntiBodys Right? Because They are So Powerful They Might Even Kill Cells Near The Target Germ Cell

  • Phosphy Cozak
    Phosphy Cozak 2 months ago

    Oh my gosh this brings nostaliga

    YING LIU 2 months ago


  • Mary Dickerson
    Mary Dickerson 3 months ago

    The mitochondria is the powerhouse of the cell

  • Captain Chaos
    Captain Chaos 3 months ago

    That dirt molecule looked so sad it couldn't get in to the cell.

  • Neovie Mae Chiva
    Neovie Mae Chiva 3 months ago

    The so easy to learn thank you ted ed sorry if I spell that wrong

  • Rishab Modi
    Rishab Modi 3 months ago

    What kind of animation is this.. And how can i create? Any software?

  • Kurt Balakwit
    Kurt Balakwit 3 months ago

    This is more understandable than the ones in my book :D Thank you!

  • Apple Pie
    Apple Pie 3 months ago

    This makes us sound immortal but in real life its just so easy to get sick.

  • Ryu Esguerra
    Ryu Esguerra 3 months ago

    Why does water contain parasites

  • Prince Grotle
    Prince Grotle 3 months ago

    1:55 RNA doesnt have thymine it has uracil

  • Jake Fine
    Jake Fine 3 months ago

    It’s crazy how complex getting a cold is

  • I am Cobalt
    I am Cobalt 3 months ago

    This is a valid demonstration but it is not exactly the most accurate demonstration

  • Brevin Denney
    Brevin Denney 3 months ago

    I hate this Chanel

  • Jesse Zhang
    Jesse Zhang 3 months ago

    you cant kill a virus

  • wowwowweebs
    wowwowweebs 3 months ago


  • The All Seeing Eye
    The All Seeing Eye 3 months ago

    And yet breathing oxygen steadily kills our cells via oxidation.......

  • Alicia Hughley
    Alicia Hughley 3 months ago

    0:33 ...

  • RookieNoobGamer
    RookieNoobGamer 3 months ago

    Where was this when I was in Highschool?!

  • Angel Handoyono
    Angel Handoyono 3 months ago

    Three medicines help you so you cannot get sick its stimuno imboost and airborne they protect your body from sickness

  • Jman and Doggodude aka Ben and Sami

    I have this on tv and I have 102 fever so this is happening in me

  • Kayy Zero
    Kayy Zero 3 months ago

    fascinating video..even kindergarten students will enjoy biology class if the class was like this.

  • dr. boi
    dr. boi 3 months ago

    The animation is so cuuuuteeee

  • Junkookie Cookie
    Junkookie Cookie 3 months ago +1

    0:22 Did she just assume my gender? Triggered!!

  • Joshua Mel Gutierrez
    Joshua Mel Gutierrez 4 months ago

    So cute I should have watched this before my exam lol

  • kioske ball
    kioske ball 4 months ago

    Thankfully our immune system don't go to sleep

  • Mysterious Murders
    Mysterious Murders 4 months ago

    I’m using these stuff for my science mindmap for cells XDDDD

  • Aleksandar Aca
    Aleksandar Aca 4 months ago

    Moral of the story : Don't go to the grocery store to not get that virus who's gona cause massive tank production in your body.

  • Raul Tapia
    Raul Tapia 4 months ago

    Cool video but mRNA doesn't use t like DNA instead it uses u

  • Graham Aker
    Graham Aker 4 months ago


  • Enzo F. 27
    Enzo F. 27 4 months ago

    I got burned on 3:05

  • C AKE 21
    C AKE 21 4 months ago +1

    It’s the viral hunger games lol

  • Kitten Purry
    Kitten Purry 4 months ago

    I am trying to write a summary on this and i wish the script was in the description.:(

  • Ron Samudio
    Ron Samudio 4 months ago

    I thought dendritic cells binds through the helper t cells if it recognises the samples of the intruders then helper t cell also activates a b or plasma cell the it multiplies and then make antibodies

  • Brainy Narwhal
    Brainy Narwhal 4 months ago

    police chief sends his men to the town hall to watch a USclip tutorial: how to fight virus

  • That One Luigi
    That One Luigi 4 months ago

    you just started WW3 in your body.

  • Mauricio Arce
    Mauricio Arce 4 months ago

    I'm not a yutuber

  • Gabriel Micheal
    Gabriel Micheal 4 months ago

    Thats great and all but if this happened as displayed in the video the body would eliminate the flu and you wouldnt get sick. Its not as though one flu cell could invade an entire human body without reproducing, how does it do so within the human body?

  • TheOrange Planet
    TheOrange Planet 4 months ago

    This is school that *DOES’NT* want you to suffer