Sneeze vs Cough Operation Ouch!


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Sneeze vs Cough

Clips from Operation Ouch! Coughing and sneezing are the body's ways of getting rid of unwanted stuff, but they can spread germs really far too!


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Transcript


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-Are you ready for our Ouch-Snips?

-Snip!

-Ouch!

-Exactly!

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It's time for the cough to take on the sneeze.

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-Which will win?

-Let's head to the lab.

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First up, the cough.

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Time to see it like never before.

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Now, this is a video of the inside of my head.

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This was taken using a...

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Now, the main difference between a cough

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and simply breathing out hard is my favourite body part...

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Its normal job is to stop food going into your lungs

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when you swallow, but in a cough, it closes off the lungs

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and allows pressure to build up in the lungs.

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Xand, do the first part of a cough.

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Now, Xand's closed his epiglottis, the pressure's rising in his chest,

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so when he opens it...

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..the air rushes out at...

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But if a cough's that powerful, where does it go? And what's in it?

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It's time for some...

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I've put plates full of a special scientific gunk

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called agar jelly on the faces of our cut-outs.

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So if any bacteria happened to land on any of our plates,

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they're going to multiply so much we can actually see them.

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OK, Chris, are you ready? Three, two, one, cough!

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We're doing two experiments,

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one where the plates are ten centimetres away,

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and another where they're 50 centimetres away.

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-Well, all done.

-Not quite, Chris.

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I want you to take this agar plate and hold it in front of your face

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and I'm going to cough on it.

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And this time I'm going to cover my mouth with my elbow,

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the way you're supposed to, and hopefully no germs

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should land on the plate.

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OK, well, just make sure you do it properly.

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HE COUGHS LOUDLY

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We've given the bacteria a few days to grow. Time for the results.

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So let's check out the cut-outs

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that were 50 centimetres away first.

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Eugh! Yuck!

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This has worked really well.

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All these bacteria have grown into thick,

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furry, yucky blooms.

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Euggh!

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Well, let's have a look at mine.

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Eeeugh! They're even worse than Xand's.

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Mine are also growing in horrible, slimy, furry, green colonies.

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Now for the cut-outs that were only ten centimetres away.

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Oh! This is even worse!

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There's loads of furry stuff in here.

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Oh, that is disgusting!

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Let's have a look at mine.

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Euugh!

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There's the huge bacterial splat in the middle of the plate.

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I must've coughed up a lot of saliva with that one.

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So this is like coughing into someone's face

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when they're right next to you.

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And that's bad news for them

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when you realise that the average cough has 20,000 viruses in it.

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Which brings me to our last result. Let's have a look at the plate

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where I covered my mouth and coughed at Chris.

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Two bacteria!

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I knew you hadn't covered your mouth properly!

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So a cough can spread illness by shooting out germs at 60mph.

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That could spread germs even further.

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Let's take a look...

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This is a slow-mo video of my sneeze.

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Here we go!

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Did you notice how it's all coming out of my mouth and not my nose?

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And look how far it travels.

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Imagine if Chris had been ill when he sneezed.

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Every single one of those droplets could have contained

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disease-spreading germs.

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And that's why it's so important to cover your mouth.

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Now we're going to show you just how big and powerful

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a sneeze can be.

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We're going to create our own work of art.

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We'll both drink different coloured liquids

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then get a sneeze going to create our masterpiece.

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Get ready for germ art!

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OK, so are you going to go first?

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Now you'll notice an amazing splatter effect.

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And that's all down to the speed our sneezes are travelling.

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100mph, to be precise.

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And, remember, if we're ill, that would all be germs.

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Now, with all this sneezing, look what's started to happen.

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Yep, snot!

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And that's the mucus our bodies have created

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-to flush out what was making us sneeze.

-Yuck!

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So we've shown you that both the cough and the sneeze

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are your body's brilliant way of getting rid of unwanted stuff.

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They're also both pretty good at spreading germs wherever they land.

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So don't forget to cover your mouth!

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-See you next time!

-Bye!

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-Bye!

-Bye!

-Byee!

-Bye!

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Byeee!

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-THEY MOUTH:

-Bye.

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