Episode 3 Operation Ouch!


Episode 3

The doctors take a close-up look at how the eye works, and Dr Chris finds out what body fat does by looking at some of his own under a microscope.


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Transcript


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He's Dr Chris.

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And he's Dr Xand.

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And, yes, we're twins.

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Do you know how brilliant your body really is?

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I'm getting better.

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Well, we're going to show you.

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Oh, there you go.

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In this series, we'll be pushing our bodies to their limits...

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Hello?

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..by doing extraordinary experiments on each other.

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This is my sick.

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To uncover what goes on inside...

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Here we go. Yum, yum, yum.

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..and out.

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Ewww! That just came out of my ear.

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From the bizarre...

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-Could we get a sample of your snot?

-Oh!

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..to the incredible.

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So now I'm seeing things.

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It's time to find out what you're made of.

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Chris? Chris? Chris?

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-Coming up... BOTH:

-..on operation ouch.

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We take a closer look at our peepers.

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Wow, that's amazing.

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Chris finds out why too much fat is bad.

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This yellow stuff is from my tummy.

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And why is this guy pulling this face?

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All will be revealed, but first...

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Medical teams always expect the unexpected.

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But no-one was expecting this.

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In accident and emergency, ten-year-old Iman

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has come in hobbling with, well, he's not quite sure.

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I had this rash yesterday that made all my hands

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and my legs swell up, and now it's spread for some reason.

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Ooh, it's looks serious, but nice socks.

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Has this ever happened before?

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No, first time. First time.

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This is the first time.

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Ah, OK. First time, got it. So, how did it start?

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Iman was at school in art class.

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-Oh, nice sculpture, Iman.

-Really nice.

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He's got a real talent.

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Anyway, just as he was adding the final touches to his

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masterpiece, he looked down to see his hand swelling up.

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Oh-oh. This doesn't look good.

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And it didn't stop there.

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It turned into a rash that spread around his body and his

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joints became swollen and sore.

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Ouch!

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The rash has now spread and it's hurting all

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the joints on my body like my legs and my ankles and my elbows,

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my back and the back of my head as well,

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but not really my shoulders.

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Well, that's something.

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But with a mystery illness at large, Iman's mum and brother have brought

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him to hospital to find out what could be causing

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his strange symptoms.

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This needs to be looked at urgently.

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Enter Dr Morag Turnbull.

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Nope, she's not playing a tune on his tummy.

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She's giving him a thorough examination.

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-Ow, that hurts.

-That hurts. Sorry, sweetheart.

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I'm really not trying to hurt you.

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-That hurts as well.

-Gosh, it just hurts everywhere, doesn't it?

-Yeah.

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I think what he's got is something that we call HSP, OK?

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It stands for henoch-schonlein purpura.

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So go on then, Doc, tell us more about it.

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What it is, is it's like an inflammation of the blood vessels.

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It's something called vasculitis.

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You can get this condition after a virus and the inflamed blood

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vessels can cause a bruise-like rash and swollen joints,

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which can be painful and make it hard to walk.

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Ow, ow, ow, ow!

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His joints are obviously very painful.

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He's not really able to stand, so he's going to need to stay

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in hospital until we can get on top of his pain a bit better for him.

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Later on, the doctors start to worry that Iman may have something

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much more serious.

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I think there's a small chance we're dealing with meningitis

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because that rash can look like that as well.

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So, we'll see how Iman gets on soon.

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And now to our lab, where we do incredible experiments...

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Oh, it's disgusting.

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..to show you how your body works.

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It's not pretty to look at, but it is brilliant stuff.

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Just don't try anything you see here at home.

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Today, it's all about our peepers.

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-Your eyes are amazing.

-Ooh, thank you, Chris.

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Actually, a lot of people have told me that my...

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Not YOUR eyes, everyone else's eyes.

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In fact, your eyes can move over a 100,000 times in a single day.

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Now, we know that our eyes come in all sorts of different colours,

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but if I look into Chris's eyes...

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Stop that.

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If I look into Chris's eyes,

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all I can really see is the coloured bit, the iris and the black

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hole in the middle the pupil, but there's a lot more going on.

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It's time to delve a little deeper.

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This is my digital opthalmoscopic slit lamp.

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It's Chris' eye camera.

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This will let us look at Xand's eye super close up.

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Wow, that's amazing. So, this is Xand's eye.

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Now, the coloured bit of the eye here is called the iris

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and the colour of the iris depends on the amount of pigment in it.

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Xand's got a brown iris, which means he's got lots of pigment

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and people with less pigment have blue or green,

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lighter coloured eyes.

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And the iris is a ring of muscle surrounding the pupil,

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and the pupil's black, because it's a hole going right

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through to the back of Xand's eyeball.

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Your iris and pupil work together to help you see and to show you how,

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Chris is going to use this torch,

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which is specially made for looking at eyes.

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I'm going to shine it into Xand's eye and you'll see his eye

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will detect the extra light and contract the pupil.

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When I take it away, there's less light

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and the pupil gets bigger again.

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This is what happens when you go to a dark place like a cinema.

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Your iris opens your pupil right up to let in as much

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light as possible so that you can see, but if you go to a bright

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place, like a sunny beach, your iris closes your pupil right down

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to let in less light, because you don't need all that light to see.

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Now, I want to show you even more about the eye,

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but the only way I can do that is by taking one out and chopping it up.

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Wooh!

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Don't worry, Xand, I'm not going to chop up YOUR eyes.

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I got some from the butchers to help us with our experiment.

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-This is a pig's eyeball.

-W-w-w-wait.

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What do you call a pig with no eyes?

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Pg.

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That's really bad.

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Now, this pg's eyeballs are very similar to human eyeballs

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and to show you what's going on inside, we're going to cut one open.

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Obviously, we're trained up to do this.

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We need to get the lens out because it does something really brilliant.

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Oh, there you go. Look at that.

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That went really well.

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Now the lens receives all the images and sends them to the retina.

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And the retina completely covers the back of the eye,

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so it's a bit like the sensor in a digital camera.

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It captures the image

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and then sends the information to the brain for processing.

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But, just to make things a little more complicated,

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when the image lands on the retina it's upside down.

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And that's because light rays bounce off everything you're looking at,

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travelling in straight lines.

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But your lens is curved, so you can focus on different objects.

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When the straight lines hit the curved lens, they bend and

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the image hits your retina upside down.

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And we can prove it.

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I've taken the lens out of this eyeball.

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I want you to look through it and tell me what you can see.

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Yeah, you're upside down.

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Now we appear to be upside down and this is what's

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happening inside your eye, but if the retina receives the information

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upside down, why aren't we seeing the whole world upside down?

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Well, the answer is that when your brain receives the upside down

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image, it cleverly flips it over, so the world seems the right way up.

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I said it cleverly flips it over, so the world seems the right way up.

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Better late than never.

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The park...

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is a place to have fun...

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Weee!

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..but it's also a place of danger.

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You could get hit on the head by a stick thrown for a dog.

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Lucky escape.

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Get dazzled by the sun on a very hot day. Nicely sorted.

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Or make your scrubs really dirty and your mum very cross.

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-One safe thing you can do is play frisbee.

-Chris!

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Ow!

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Ooh! A minor injury.

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Still, now that he's hit his head, how shall we treat him?

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I didn't hit my head. YOU hit my head.

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I'm certain the first one is a bad idea,

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but I'd like idea of going on the swings and roundabouts.

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Well, the correct answer is C.

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Putting something cold on it, like frozen peas, reduces the pain

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and swelling. But if you feel sick or dizzy, tell an adult.

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-That's looking good, Chris. Much better.

-Yeah, much better(!)

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A BIRD SQUAWKS

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HE LAUGHS

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Do you want some peas for that?

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So, if you get bump on the head, put something cold on it to

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reduce the swelling - not bird poo.

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If you ARE worried then tell an adult.

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We've got some incredible body tricks for you to show your mates.

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Want to fool your friends into thinking they're falling

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through the floor? Well, we're going to show you how.

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So we got a really good trick for you.

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Xand, I want you to lie on the ground.

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-OK. You comfortable?

-I'm very comfortable.

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So, Xand, I want you to give me your feet

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and I'm going to make your feet feel as if they going through the floor.

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-No, you're not. This floor is solid.

-Give me your feet.

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These feet are disg... Can anyone else smell Xand's feet?

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-ALL:

-Poo!

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Xand, close your eyes and I'm going to slowly,

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slowly lower your feet and it's going to feel like I've got

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these guys to dig a hole under your feet.

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They digging holes? I can't hear any digging holes.

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How close do you think your feet are to the ground?

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-Probably about ten centimetres off the ground.

-Ten centimetres.

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'More like 50 centimetres, but let's keep going.'

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OK, they're right about to touch the ground now. 'No, they're not.'

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Whoa! They're going through the floor. Whoa! Whoa!

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'His feet haven't even touched the floor yet,

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'but Xand thinks they're falling through it.'

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Oh, that's really weird, they're through the floor.

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'Time for this lot to have a go.'

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Ten centimetres.

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'So, why do your legs feel like they've gone through the

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'floor when they haven't?'

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It felt like when you was laying down like,

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all the blood was like draining from your lower part of your body,

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so it felt like your legs were getting numb.

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Well, Olivia's on the right lines, but there's more to it than that.

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When Chris held my legs up, the nerves in my joints relaxed

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and stopped telling my brain where my legs were.

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And having my eyes closed meant that, when he lowered them again, my

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confused brain tried to work out the position of my legs but kept getting

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it wrong, and that's why it felt like they'd fallen through the floor.

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When it was nearly touching the floor,

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it felt like I was really under.

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Try it yourself and see if you can feel it, too.

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Earlier, we saw Iman with that mystery rash.

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Let's see how he's getting on.

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Back in Sheffield, Iman has spent the night in hospital after

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coming in with a mystery illness.

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He'd been at school in his art class when, all of a sudden, he

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looked down to see his hands were swelling up and a spreading rash.

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After being diagnosed with HSP, where your blood vessels

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become inflamed, he's been receiving pain medication to treat his

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sore and swollen joints.

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How's he feeling today?

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A lot better than yesterday.

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I think I might be able to stand up, but not yet walk.

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Well, it's a step in the right direction.

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Well, he's not stepping quite yet, Xand, because just as things

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are looking up, there's been a new development.

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Someone at Iman's school might have meningitis, which is contagious.

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Because of this, consultant Judith Gilchrist is on the case.

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I think, although it's 90% sure it's HSP, I think

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there's a small chance we're dealing with meningitis,

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because that rash can look like that as well.

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Also, Iman's GP gave him antibiotics a few days ago,

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which CAN make meningitis look like HSP.

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He's actually had a couple of days of antibiotics already

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and there's been a possible contact with meningitis at school.

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We may be dealing with a partially treated meningococcal infection.

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So, basically, he needs to stop in for at least another two days

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and we're going to put a drip into the back of his hand and take some

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more blood tests, and we'll start him on some intravenous antibiotics.

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Once Iman's handed over some of the red stuff,

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it's off to the lab for testing.

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But it will take 48 hours to get the results.

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In the meantime, Iman just has to wait.

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Two days later and our patient seems to be on the mend.

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A lot better now. I could walk.

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I can reach the lavatory right now.

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My legs still hurt, but I can still reach it.

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He might feel better, but he still has to get the results from

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his blood tests and they're in.

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I've got some good news for you.

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You're blood cultures are negative, so you can go home.

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It's great news. Iman's blood tests show he doesn't have meningitis.

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I'm so pleased.

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Finally, I'm going home. Yes!

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So it is HSP after all,

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which will clear up all by itself in a few weeks.

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At least for now he's got a spring back in his step.

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-BOTH:

-Bye!

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Still to come, we show you how your body heals itself after a burn.

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There's an infected finger in accident and emergency.

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My finger's got yellow pus in it.

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Nice. And yep, that needle is going to suck out my fat.

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Xand? Where's Xand? Xand said he'd do this.

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Now, did you know that the average human head

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weighs as much as a watermelon?

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That's amazing and so's this.

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OK, Xand, I've got something for you.

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Can you guess what makes this man amazing?

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Wow, he doesn't look happy.

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-Is he the angriest man in the world?

-No.

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-He's not on the toilet, is he?

-No.

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This is John Evans.

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He's a world record holding head balancer.

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He's balanced a washing machine and a fridge, a car

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and even Dr Who's TARDIS on his head.

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What's he going to balance for us?

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-20 tubs on a large metal frame.

-Whoa!

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I THINK that's amazing.

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It is, Xand, and here's why. He's carrying on his head,

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the weight equivalent of 20 bags of sugar

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or 500 lemons, or one seven-year-old boy.

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Go on.

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John's held more than 40 world records for balancing all

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sorts of things on his head. And when it comes to competitions,

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he really gives it everything he's got.

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Oh, I've done tremendous things.

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Two girls on bicycles, 98 milk crates all in one time.

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548 footballs.

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So, how does John's amazing body do this?

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Well, the secret is his massive and powerful neck.

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Where as your average man's neck is 40 centimetres around,

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John's comes in at a whopping 54.

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That's the size of Selena Gomez's waist and nearly twice as big

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-as your neck.

-Wow! That's big.

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But the real power, though, comes from the muscles inside.

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There are five major muscles in the neck, but the heavyweights

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are the trapezius muscles at the back.

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I do have the strongest neck in the world.

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It's as solid as concrete.

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OK, I'm sold. That's amazing!

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Your body can need mending in all sorts of ways and we're going

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to meet some special teams that are trained to fix you.

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I absolutely love swimming and this is a really cool swimming pool,

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but it's not an ordinary swimming pool.

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We're in a hospital, and for some patients,

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this water is like medicine,

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but we're not going to drink it.

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This pool is for hydrotherapy,

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a type of exercise in water that helps people like nine-year-old

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Jay who has arthritis.

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So, Jay, can you tell me why you're coming here?

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I've got arthritis in my knees and my feet,

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and sometimes they're sore and stiff.

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So, if you're just running around normally, do your legs hurt?

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Yeah.

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-And does it hurt when you're moving around in the swimming pool?

-No.

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-Is it fun as well?

-Yeah.

-Yeah.

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Treating Jay is physiotherapist Amy Robinson.

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So, Jay needs to exercise to keep his muscles strong to keep

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flexible, but why can't he just do that on land?

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Why does he need the pool?

0:17:350:17:36

Well, in the pool, because the water is really warm,

0:17:360:17:39

it's like having a really nice, hot bath.

0:17:390:17:41

It relaxes all the muscles and that's really good for pain

0:17:410:17:44

because, if the water is quite deep,

0:17:440:17:45

it takes away a lot of the weight on the joints as well.

0:17:450:17:48

Jay spends half an hour every week in the pool doing lots of

0:17:500:17:53

different exercises and games.

0:17:530:17:56

So, what's so great about exercising under water for Jay

0:17:560:17:59

is that the water provides resistance, like

0:17:590:18:01

if you think of how hard it is to move under water,

0:18:010:18:03

it's really good exercise.

0:18:030:18:04

But the water also supports his body, so it's less painful.

0:18:040:18:08

Keep going, Jay!

0:18:100:18:12

That's it. Well done.

0:18:120:18:14

So all these exercises, they're hard work,

0:18:140:18:17

but they're quite gentle and soft on the joints.

0:18:170:18:20

In the mornings, Jay's joints can be so sore and stiff it can take

0:18:210:18:25

him two hours to get up and moving, but regular hydrotherapy

0:18:250:18:29

makes a real difference.

0:18:290:18:31

So, how you feeling now, Jay?

0:18:310:18:33

More relaxed, a bit less sore and it's easier to move around.

0:18:330:18:38

Really good. Well, look, thank you very much for having me today.

0:18:380:18:42

High five. Aww!

0:18:420:18:44

This next boy may be accident prone,

0:18:520:18:54

but his body is brilliant at mending itself.

0:18:540:18:56

Just like yours.

0:18:560:18:58

# If there's a bone to break, he'll break it

0:18:580:19:01

# If there's a wound to graze, he'll graze it

0:19:010:19:04

# If there's an ankle to sprain, he'll sprain it.

0:19:040:19:07

# He's the unluckiest kid. #

0:19:070:19:09

Mmm, a nice mug of hot coco. Oh, dear.

0:19:100:19:13

When you burn yourself, the extreme heat cooks your skin,

0:19:130:19:16

damaging the top layer of skin cells.

0:19:160:19:19

The damaged cells trigger an alarm inside your body and it sends

0:19:190:19:22

in your immune system to clean up the mess.

0:19:220:19:25

First, it flushes the area with a load of new blood full of

0:19:270:19:30

white blood cells. This makes the burn site go hot and red.

0:19:300:19:35

These white blood cells remove the damaged skin by eating it - yummy.

0:19:350:19:38

Then there's a rush of plasma.

0:19:400:19:42

This creates a blister to protect the area.

0:19:420:19:44

Meanwhile, below, new skin cells are being born all the time,

0:19:460:19:49

making their way to the top.

0:19:490:19:51

So, don't be tempted to pop that blister, as it's doing an

0:19:510:19:54

important job protecting the new skin.

0:19:540:19:57

Oh, but it's so satisfying!

0:19:570:19:59

Yes, Xand, but you could get germs in there.

0:19:590:20:01

Your body knows when the time is right to dry up the blister.

0:20:010:20:05

Only when the brand new skin is ready.

0:20:050:20:08

Oh, no!

0:20:080:20:10

Be careful with hot drinks, unluckiest kid.

0:20:100:20:12

# He's the unluckiest kid. #

0:20:120:20:15

Now, my humerus weighs that and my radius weighs this,

0:20:170:20:21

and I subtract the amount my fingernails would weigh,

0:20:210:20:24

and I factor in the surface area of my skin and I know the...

0:20:240:20:28

What are you doing?

0:20:280:20:29

I'm trying to work out how much fat is in my arm.

0:20:290:20:32

Xand, you do know there's a much easier way of working

0:20:320:20:35

-out your body fat.

-Really?

0:20:350:20:37

Yes.

0:20:370:20:38

It's time for investigation ouch.

0:20:380:20:41

This is my fat.

0:20:430:20:44

You need fat to keep your body working.

0:20:440:20:46

It keeps you warm and whether you're kicking a football or jumping

0:20:460:20:50

into a swimming pool, it's fat that stores the energy to help you do it.

0:20:500:20:53

But if fat's so amazing, how come we're always being

0:20:530:20:56

told we've got too much of it?

0:20:560:20:58

There are tests going on here at Warwick University that might

0:21:000:21:04

answer that question.

0:21:040:21:07

Meet the bod pod.

0:21:070:21:08

No, I'm not being sent into space.

0:21:100:21:13

With the help of Dr Philip McTernan,

0:21:130:21:14

this cool bit of kit is going to measure how much

0:21:140:21:17

fat I have on my body.

0:21:170:21:18

OK, so what do I do? Just get in it?

0:21:180:21:20

No. There's one thing that you need to do first.

0:21:200:21:23

You need to make sure that we have something that is much

0:21:230:21:26

tighter than this.

0:21:260:21:27

Well, luckily, I'm wearing my Operation Ouch leotard.

0:21:270:21:30

You might be wondering why I've agreed to wear this,

0:21:310:21:34

but the pod needs to take very precise measurements,

0:21:340:21:36

so baggy clothing and loose hair are no good.

0:21:360:21:39

This device works by measuring the amount of room my body takes

0:21:440:21:47

up in this enclosed space.

0:21:470:21:50

It feels very claustrophobic.

0:21:500:21:53

Luckily I've got a nice big window, so I can see.

0:21:530:21:56

And a few fancy computer calculations later,

0:21:560:21:59

we have my stats.

0:21:590:22:00

There we go.

0:22:030:22:04

Percentage fat - 13.8%.

0:22:040:22:06

That's very good. It means, you know, you're fit, healthy

0:22:060:22:10

and you've got the right amount of fat, that's for sure.

0:22:100:22:12

So if I'm 13.8% body fat, how much fat is there on me?

0:22:120:22:16

To give you an idea.

0:22:160:22:18

This is standard cooking oil but if you had 12 bottles of this,

0:22:180:22:21

this would equate to how much fat you have in your body.

0:22:210:22:25

This is a really nice illustration of how amazing

0:22:250:22:28

fat is as an energy store.

0:22:280:22:30

I have 12 bottles of fat like this in my body

0:22:300:22:33

and that's enough energy for me to run 30 marathons.

0:22:330:22:37

And it also explains why fat is

0:22:370:22:38

so hard to get rid of, because you've got to do a huge

0:22:380:22:41

amount of work to get rid of a relatively small amount of fat.

0:22:410:22:44

So, more exercise will get rid of it, but to understand why

0:22:440:22:48

too much fat can be bad we need to get a closer look.

0:22:480:22:51

I'm about to get a fat biopsy,

0:22:520:22:54

and that's when some fat is taken out of my tummy using a huge needle.

0:22:540:22:58

Now, obviously Xand and I aren't afraid of big needles,

0:22:580:23:01

but if you're squeamish, you need to turn off the television,

0:23:010:23:03

leave the room and go and hide under your bed.

0:23:030:23:07

Done that? Good.

0:23:070:23:08

Dr Millan, show us the needle.

0:23:080:23:11

I told you it was big.

0:23:120:23:14

Xand? Where's Xand? Xand said he'd do this.

0:23:140:23:18

Too late.

0:23:180:23:19

I've had a local anaesthetic, so I can't feel anything.

0:23:190:23:22

And the doctor's cut a little hole in my tummy so that he can get that

0:23:220:23:25

huge needle in and some of my fat out.

0:23:250:23:29

Oh, wow, yeah.

0:23:300:23:31

So, this yellow stuff floating on the top here,

0:23:310:23:34

this is the fat from my tummy.

0:23:340:23:37

And the average person has 50 billion fat cells,

0:23:370:23:40

more fat cells than there are people on the planet.

0:23:400:23:43

Now it may look like we've used a huge needle

0:23:430:23:45

and not got very much fat, but we don't need that much cos

0:23:450:23:48

we're going to have a look at some fat up close, under the microscope.

0:23:480:23:51

So, let's see what the cells actually look like.

0:23:540:23:57

These are my fat cells and these belong to a person who has a

0:23:570:24:00

higher fat content in their body.

0:24:000:24:02

Why are their cells looking different to mine?

0:24:020:24:05

We can see from here, you have a lot smaller fat cells.

0:24:050:24:08

Now someone who has more weight, they have bigger fat cells.

0:24:080:24:12

So, a person with more fat doesn't necessarily have more cells -

0:24:120:24:16

they've just got more fat in each cell.

0:24:160:24:19

Yes. So, eventually, the fat spills over and then what happens is

0:24:190:24:23

that you can get fat in your liver, you can get it in your heart,

0:24:230:24:25

which affects how they function and how your body functions as a whole.

0:24:250:24:29

So, although body fat is vital to life, because it's where the

0:24:300:24:34

energy from the food we eat is stored,

0:24:340:24:36

it's really important we have the right amount of it.

0:24:360:24:39

Too much of it can put you at risk of conditions like heart

0:24:390:24:43

disease and cancer, so I for one am going to keep up with my exercise.

0:24:430:24:47

I must get Xand one of these leotards.

0:24:470:24:50

No chance!

0:24:500:24:51

Our next patient has an unusual habit.

0:24:540:24:57

And because of that she's ended up in accident and emergency.

0:24:570:25:01

In the emergency department, nine-year-old Brody has arrived

0:25:020:25:05

with her mum and eeew!

0:25:050:25:08

My finger's got yellow pus in it.

0:25:080:25:11

Yes, it has.

0:25:110:25:13

It's where I've been biting my fingers...

0:25:130:25:16

like that.

0:25:160:25:17

-You must bite your fingers a lot, Brody.

-Oh, she does!

0:25:170:25:21

Brody loves nibbling her nails.

0:25:230:25:25

She'll nibble them anywhere.

0:25:250:25:27

At home, on the bus,

0:25:270:25:29

in school,

0:25:290:25:30

even in her sleep.

0:25:300:25:32

But why, Chris?

0:25:340:25:35

Well, maybe her fingers taste of really yummy sausages or

0:25:350:25:38

chocolate eclairs.

0:25:380:25:40

-How about bananas?

-That's ridiculous, Xand.

0:25:400:25:42

Fingers can't turn into bananas. Look, let's forget the fingers.

0:25:420:25:47

Let's just face it, she loves biting her nails

0:25:470:25:49

and now the germs have gone in and they're loving it.

0:25:490:25:52

Ouch!

0:25:530:25:54

We've tried painting them with nice colour nail varnish,

0:25:540:25:58

but that hasn't stopped it. Not good. Not nice.

0:25:580:26:00

Why do you do it, Brody?

0:26:000:26:01

I don't know.

0:26:010:26:03

I just like it.

0:26:030:26:05

Here's Dr Shammi Ramlakhan to examined that pussy appendage.

0:26:070:26:11

Did you hurt it? Did you knock it or...?

0:26:110:26:13

Not exactly, Doc.

0:26:130:26:15

I think it's with me biting my nails.

0:26:150:26:17

Ah. OK. Can I have a look?

0:26:170:26:19

Can you bend?

0:26:210:26:23

Good. So, that's what happens when you bite your nails, isn't it?

0:26:230:26:27

Brody has a small abscess.

0:26:270:26:30

We need to just drain that so that her finger feels better,

0:26:300:26:34

and that it doesn't spread and become more serious.

0:26:340:26:39

Yep, that pus has got to come out.

0:26:390:26:41

What we're going to have to do is put a needle in there,

0:26:410:26:45

basically, just to release that. OK?

0:26:450:26:48

Oh-oh.

0:26:480:26:50

Now it's time for action.

0:26:500:26:52

-How's Brody?

-Scared.

0:26:520:26:54

Don't bite your other hand, Brody.

0:26:540:26:57

-Some cold spray just to make sure that...

-It goes like ice.

0:26:570:27:00

..just to make sure it's really numb.

0:27:000:27:02

Numb or not, Brody's not watching, but it's a very straight

0:27:020:27:05

forward jab with a needle and...

0:27:050:27:07

We're all done.

0:27:080:27:10

-That pus has been released, Xand.

-It certainly has.

0:27:110:27:15

What do you think, Brody?

0:27:150:27:16

-Can't you put a bandage on it?

-Yeah, a plaster on.

0:27:160:27:20

That will be enough to keep any nasties out,

0:27:200:27:22

but will all this stop Brody from biting her nails?

0:27:220:27:25

Hopefully I'll try and stop biting my nails.

0:27:250:27:30

Yes, hopefully. Fingers crossed.

0:27:300:27:32

-BOTH:

-Bye, Brody.

0:27:320:27:33

Next time, this man reveals a terrifying secret.

0:27:350:27:39

I discover what happens when you lose your senses.

0:27:390:27:42

And now I'm seeing things AND hearing things.

0:27:420:27:44

And we reveal an amazing trick your body does every time you swallow.

0:27:450:27:50

You all right, down there?

0:27:500:27:52

-So, that's it till next time.

-Bye!

0:27:520:27:55

Subtitles By Red Bee Media Ltd

0:27:560:27:59

The doctors take a close-up look at how the eye works, and Dr Chris finds out what body fat does by looking at some of his own under a microscope. Meanwhile, over in accident and emergency, one patient has a mystery rash and another has a bad infection under her fingernail.


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