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Why Do You Get A Fever? | Earth Lab

November 9, 2019

Hey there Head Squeezers I hope you’re well
and if you’re not this question is for you. It comes in from drooney187 who asks on YouTube
Why do you feel hot when you catch a cold? Yep, its that time of the year isn’t where
we all seem to have a cause of the sniffles and by that I really mean you’re probably
suffering from man flu you’re completely full of snot you feel like you’ve got barbed wire
in your throat and your temperature is utterly sky-high. Give me an ironic thumbs up if so
far this winter you’ve been struck down. So what’s going on? Well your body heats up
naturally; it’s a natural response to fight the virus. You catch a cold if your body temperature
drops and also if you inhale droplets of water that contain rhinoviruses and adenoviruses.
Those viruses are always about but in winter when your body temperature has dropped because
of the cold weather and maybe you haven’t been wearing enough layers. My coat is over
there. Your body just can’t fight off that viral infection as well, in warmer temperatures
your body gives off an anti-viral immune signal when can defend against that sort of viral
infection. But when it’s cold it can’t do that as strongly so the viruses set off a
little Christmas party in your body. And that’s why you get sick.
Now over the centuries those viruses have evolved to work very very well at your natural
body temperature of 37 degrees C. It’s the proteins that replicate themselves that work
best at that temperature. Very crafty. So what your body does, it increases your internal
temperature by one or two degrees so it will take a day or two on the sofa or watching
a box set or chilling out in bed, but your body will manage to fight off those viruses
and then it’s party over. So unfortunately those hot sweats may be keeping
you up all night but it is your body fighting back against the virus. You just have to grin
and bear it. That’s all the time I’ve got right now, please do keep sending in your
questions, stay away from those sneezers and happy Head Squeezing.

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  • Reply Matthew Monreal December 4, 2013 at 1:59 pm

    Why does a rainbow always has the form of an arc? Its something to do with refraction I think.. but why?

  • Reply Bud Riley December 4, 2013 at 5:23 pm

    Viruses do not look AT ALL like what your depicting, what you have looks more like bacteria.

    But good video though.

  • Reply Onodera1980 December 4, 2013 at 7:28 pm

    W/r/t the thumbs up… If I haven't been ill this winter, do I have to thumb down? I don't want to throw off any survey you're attempting.

  • Reply Drums December 4, 2013 at 8:35 pm

    Ironically I have a man flu right now

  • Reply Paul Donald December 5, 2013 at 3:37 am

    Why do we get random muscle twitches?

  • Reply Bob December 5, 2013 at 4:19 am

    Took Monday off work.  Sucked.  

  • Reply TheEpTic December 5, 2013 at 8:27 am

    Question: Why do men have nipples?

  • Reply TheEpTic December 5, 2013 at 8:30 am

    Question: Why do we itch?

  • Reply TarriPup December 5, 2013 at 10:39 am

    Not to mention us kiwis.
    Must mean we are super. 😛

  • Reply Orange Plastic December 7, 2013 at 9:45 am

    How do safety matches work?

  • Reply Sakonema December 7, 2013 at 11:20 pm

    Why do I feel cold when I have a fever.
    Keeps switching between hot and cold.
    Body fighting bacteria doesnt quite cover it. (at all)

  • Reply unnar freyr December 7, 2013 at 11:53 pm

    here is a question I thought of while baking pizza last night.
    How hot does a surface have to be to give you blisters??

  • Reply Jacana Productions December 8, 2013 at 6:31 am

    Is that really true about getting a cold because the body is cold, I though it was because we are indoors more in winter and therefore around more people.  (As others have stated here!)

  • Reply The Great Lad December 8, 2013 at 11:46 am

    What is eye crust?!

  • Reply Bryan Walker December 9, 2013 at 11:13 am


    I enjoy your programmes but this one on fever is totally unscientifically wrong. A hundred years ago people believed your idea and the treatment of fever was to cover febrile patients to ensure over heating in the belief that the body was being helped to combat the infection.

    We now know that viruses and bacteria 'prefer' a higher temperature and THEY readjust the body temperature to a higher one (by exerting control over the hypothalamus where temperature is regulated) to allow them to reproduce faster.

    Now the treatment of fever has changed. Febrile patients are covered in damp sheets under a fan in order to reduce the temperature to the disadvantage of the microbes.

    Bryan Walker BSc MSc PhD CBiol FSBiol FRSM

  • Reply Michael Bialocur December 9, 2013 at 1:27 pm

    How do we calculate the Universe's age?

  • Reply Abdul-Rahman Al-Hasan December 10, 2013 at 6:11 am

    What causes the earth to rotate around itself ?

  • Reply Krim MC December 10, 2013 at 12:17 pm


  • Reply amir shantia December 13, 2013 at 12:29 pm

    What is the meaning of IMAX Theatre???

  • Reply Walt BlazeKiller December 18, 2013 at 2:34 am

    How does the Universe have an affect on Earth, is the earth weightless? or is it just falling slowly and slowly and going to hit a ground down there?

  • Reply Tina Tkachenko December 19, 2013 at 6:00 pm

    Why do some people puke when they get nervous?

  • Reply phanindra srungavarapu December 30, 2013 at 5:55 am

    Where is James may?

  • Reply thyxvoid January 18, 2014 at 5:01 pm

    I have a question How come sometimes we get a cold but we don't have a fever?

  • Reply randomstuffgirl1 February 3, 2014 at 11:27 am

    I had this over christmas I was sick December 23 to December 26-27

  • Reply camden fowler February 11, 2014 at 3:02 am


  • Reply golfergal1683 March 21, 2014 at 6:59 am

    Just got the flu a few days ago…..have had a fever for now 3 days

  • Reply Damien Self April 2, 2014 at 12:33 am

    Iv got man flu ….MAN DOWN

  • Reply Santiago Salas April 16, 2014 at 10:12 pm

    Plz help me im hot in my head but cold in my body plz im scared help=, (

  • Reply Christopher Herrera July 22, 2014 at 1:53 am

    Why do you get headaches when you have the fever

  • Reply MultiTrace22 September 12, 2014 at 4:35 pm

    Then why take acetaminophen (fever reducer)?

  • Reply Naveen Chinnam September 18, 2014 at 12:27 pm

    If I suffer this time will I be flu resistant for the rest of my life?

  • Reply JLogefeil November 18, 2014 at 7:34 pm


  • Reply Unknown_ Beatkilla! January 7, 2015 at 7:10 am

    thx, stupid fever😧

  • Reply Robin XD February 11, 2015 at 8:41 pm

    A wild Sniffle has appeard!
    Robin was sent out!
    The wild Sniffle used sniffle!
    It's super effective!
    Robin was sniffled!
    The wild Sniffle ran away!
    Robin was hurt by sniffle!
    Robin blacked out! (But woke up in bed later, fighting the Sniffle!

  • Reply Wowonwei February 25, 2015 at 12:14 am

    The definition of fever by Dr. Chang C.H.'s Origin Point Medicine — your body is losing internal heating energy rapidly.
    The remedies for the fever symptom are simple. 1) Put a warm pad on the back of head in order to supplying heating energy by external way.
    2) Drink heavy dosage of warm ginger soup regularly.
    3) If the patient feels uncomfortable then depressing his/her acupuncture points where are situated behind two ears' lowest points respectively.
    That's all.

  • Reply Servatized MC February 25, 2015 at 10:10 am

    It's winter by me and a have a fever of 102.2

  • Reply Praveen Chukka March 4, 2015 at 5:32 am

    Love your accent man. 🙂

  • Reply Nemrit March 16, 2015 at 5:39 pm

    I have right now fever 🙁

  • Reply Farah Renzelli May 2, 2015 at 3:02 am

    Ummmm yeah I don't really get it.

  • Reply CALVIN AGUSTIN May 11, 2015 at 8:19 pm

    reason why im watching this: i want to know what is this weird spiky feeling in my tongue when i have a fever that making me crazy.
    heres the whole story, i hope someone can answer it.
    every time i get a fever, 5 or 2 minutes  before my fever cured…. i have this spiky feeling in my tongue its making me crazy and sweaty what ever i saw something (clothes,blanket ethc.) i scratch my tongue on it( lost self control in 3 minutes) then after that my fever are gone because the feeling my tongue making me sweat
    so what is this thing called? is it normal?

  • Reply roger201288 May 13, 2015 at 5:43 am

    i got ebola

  • Reply Chloe Bersey May 14, 2015 at 12:07 pm

    When you get sick why do you start cold then you got hot

  • Reply Ravi Kumar May 28, 2015 at 11:13 am

    Is this the same thing if you have a fever but you feel like vomiting g

  • Reply Mustafa murtaza Kapadia June 3, 2015 at 4:13 pm

    why do I feel pain in my body when I have fever

  • Reply Jacklyn Flamman June 24, 2015 at 2:00 pm

    i got a fever then a cold

  • Reply Adia Sattar August 12, 2015 at 11:17 pm

    It's summer and I got a cold..

  • Reply Slena Swift September 15, 2015 at 9:57 pm


  • Reply Emma Howard September 18, 2015 at 11:48 pm

    I'm really sick

  • Reply ConnorGaming September 23, 2015 at 11:32 pm

    I have an ando virus or something! I am pretty sick! I haven't been to school in 3 days! Whenever I walk I feel super tall! But thanks!!

  • Reply Sriram Kumar November 18, 2015 at 9:52 am

    Our body immune fights with Virus …then why we should take tablets for fever ?

  • Reply corliss goh November 21, 2015 at 1:22 pm

    I am having a fever right now……

  • Reply olevester and dheeraj AJT November 28, 2015 at 3:25 pm

    Why everyone have brain but not the same intelligence?

  • Reply Erin Wadsworth December 13, 2015 at 2:04 am

    I have the flu now. an I have a fever. of 101. now. oh man it sucks

  • Reply Black Rose Baran December 27, 2015 at 4:30 pm

    Then why do we try to stop the fever if its natural reaction

  • Reply Gia DeLuca February 11, 2016 at 4:18 am

    Who googled this if they were sick

  • Reply mike cioka February 16, 2016 at 5:45 pm

    amazing information, that why we should not use any medication to decrease the fever, the body temperature will never reach more than 42 C' what you need to do when you or your child have fever is to keep drinking liquids and be hydrate. If you are not hydrate properly you may experience a seizes. That why if you have a child you need to make him/her drink a lot of liquid ( no artificial drinking ) best liquid will be natural juices, coconut water and filter water.

  • Reply Stephen DeWitt February 27, 2016 at 11:04 pm


  • Reply ShinkoAsian March 2, 2016 at 8:03 am

    Now I know how to get sick so I can not go to school

  • Reply sicsempertyrannis7 June 8, 2016 at 9:09 am

    I think the reason you get sick during the winter more is NOT because of our body temperature dropping, but rather because people tend to congregate inside more passing communicable diseases.

  • Reply zoran konas June 13, 2016 at 2:38 pm

    it hapend to me yesterday when I was obout to go slepp

  • Reply Sourav das July 11, 2016 at 2:19 am

    what are the necessary food to eat in that conditions ?

  • Reply plushie August 4, 2016 at 11:45 pm

    I want to be able to sleep 😭😭😭😭

  • Reply JUNAN ZZZ THE GAMER September 5, 2016 at 9:33 am


  • Reply lonely potato September 30, 2016 at 6:19 am

    the most helpfull thing

  • Reply TheBoltMaster October 31, 2016 at 8:17 pm

    My body feels hotter than the surface of the sun! My blood is boiling! I'm laying in my bed right now ;(

  • Reply BE SMART AND FIT NO SHIT November 1, 2016 at 12:29 pm

    which editing software you use please reply

  • Reply AlanSan November 24, 2016 at 3:12 pm

    me body temperature is 104 degrees what do I do

  • Reply unlokia January 8, 2017 at 11:02 pm

    Thank you, this explains a lot, God bless you, from a man who shares your surname 🙂

  • Reply Vizzy Jay January 29, 2017 at 9:53 pm

    If you came to get a fever just sleep under the cover all night it works

  • Reply drakgrotta February 5, 2017 at 7:45 pm

    My baby has a cold and a fever. we are giving paracetamol to lower the fever. are we hindering the body to heal?

  • Reply Shisha&Co February 8, 2017 at 3:01 am

    this video is fantastic I'm subscribing 😆

  • Reply Javie ._ February 9, 2017 at 4:52 pm

    I have a fever right now and also my tonsils are infected 😞😭 my throat is itchy and got a headache

  • Reply Erin Soriano February 17, 2017 at 3:44 pm

    The Christmas Party is sooo cute!
    In America we use Christmas lights all throughout the year for night lights and fun!
    On the cieling blue ones mimmick constellations and are quite soothing.
    Have a blessed day!

  • Reply Koevi V February 21, 2017 at 9:54 pm

    You don't catch a virus if you're body is cold. Viruses thrive in cold weather.

  • Reply Abhash Pathak April 13, 2017 at 12:12 pm

    Who else is enjoying high fever

  • Reply The Retards May 20, 2017 at 1:06 pm

    Why do i get jet lag

  • Reply jerson e June 8, 2017 at 2:34 am

    help me i'm so cold

  • Reply Concepts of Maths and Science. July 9, 2017 at 1:13 pm

    yesterday I slept with 100% speed of fan and now am sick.

    🙁 …what is your cause for last fever??

  • Reply Star Joaquim August 28, 2017 at 9:36 am

    Do not lie in the bed too long when u hav a fever my highest tempreture is 38.1

  • Reply Biju Nasqurel November 2, 2017 at 6:04 am

    so I have to rest right now no medicine ok

  • Reply Acosta B November 10, 2017 at 8:41 pm

    i have a fever right now, i feel like im dying

  • Reply Russ Smith December 6, 2017 at 9:06 pm

    today i skiped school bc bad tummy aces

  • Reply Marshall Boult February 10, 2018 at 3:19 pm

    Ive seen you in factomania

  • Reply Leo’s Gaming Channel March 11, 2018 at 8:13 pm

    I had a fever a minute ago but I got it away because I took a cold shower

  • Reply Lieutenant BoltZ April 3, 2018 at 3:17 pm

    I have a fever and all the symptoms match up. I also have a head ache but thats just me staying up too late or something.

  • Reply Shashikant Khot May 30, 2018 at 1:27 am

    Why do we die??

  • Reply Viktor Sijpkens - Aviation June 8, 2018 at 1:42 pm

    Likes this comment if you have fever like me right now.. :p

  • Reply Blade skills July 14, 2018 at 1:21 pm

    I really don't feel good right now I feel so sick 🤒🤒🤧🤧

  • Reply Eric Acosta October 23, 2018 at 7:43 am

    Awesome. I feel better already

  • Reply Nazanin Naz December 30, 2018 at 9:22 am

    Just 2 degrees!!!
    From 37 to 39 and infection die!!!

  • Reply Golden Squatch January 12, 2019 at 5:56 am

    I had a fever during Summer. Worst 4 days of my life.

  • Reply Monster1680 T February 17, 2019 at 7:40 pm

    I hav fever

  • Reply Vickie Moberg March 15, 2019 at 10:10 pm

    I hav a 103.7* fever plz give me a like

  • Reply MAGA anti-globalist March 22, 2019 at 8:32 pm

    We hot desk at work and keyboard and phones aren't cleaned

  • Reply The Raven July 1, 2019 at 4:54 pm

    I have A Fever right now☹

  • Reply Faith Davis July 11, 2019 at 6:56 pm

    I don't think this is very factual, and I don't like that you didn't cite sources.

  • Reply MuhsinTheMomin July 20, 2019 at 7:57 pm

    Feeling super hot. Just waiting for the fever to break.

  • Reply Nicholai Scottman August 6, 2019 at 11:16 am

    My dad says i shouldnt cover up and I should stay cool. I do the opposite. Which is right?

  • Reply supercomputer2004 September 6, 2019 at 12:58 am

    September 5 2019 and I got a cold. It sucks.

  • Reply Sadaf Batool October 9, 2019 at 5:34 pm

    Who camed here to skip school🤣🤣☝️

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