0:00:23 > 0:00:28He's Dr Chris and he's Dr Xand.
0:00:28 > 0:00:30Yep, we're twins!
0:00:30 > 0:00:34Do you know just how brilliant your body really is?
0:00:34 > 0:00:36Well, now's the time to find out.
0:00:36 > 0:00:39We'll be uncovering the ins and outs of what you're made of.
0:00:39 > 0:00:41I've got a big hole in my head.
0:00:43 > 0:00:45We'll be doing awesome experiments.
0:00:45 > 0:00:47You sound ridiculous.
0:00:47 > 0:00:49Pipe down, squeaky!
0:00:49 > 0:00:52..as we push our own bodies to the limits.
0:00:52 > 0:00:54OK, here we go.
0:00:54 > 0:00:56Oh, oh.
0:00:56 > 0:01:01To show you all the incredible things your body can do.
0:01:04 > 0:01:06Hang around because this is going to be fun.
0:01:08 > 0:01:10- BOTH:- Coming up today on Operation Ouch.
0:01:15 > 0:01:18Ryan and Harry come in to get fixed.
0:01:18 > 0:01:22There'll be giant flesh-eating creatures...
0:01:22 > 0:01:24OK, not giant, but flesh-eating.
0:01:24 > 0:01:28We meet a man with a terrifying secret,
0:01:28 > 0:01:32and Xand joins paramedics on a life saving mission.
0:01:32 > 0:01:35We have an 83 year-old lady who's fallen.
0:01:35 > 0:01:39Hello, we're going to sit you up so I can look at your head, is that OK?
0:01:41 > 0:01:44What started off as a normal day for our first patient has ended up
0:01:44 > 0:01:47with a trip to Accident and Emergency.
0:01:47 > 0:01:49Luckily, they've come to the right place.
0:01:49 > 0:01:51In the waiting room is six year-old Harry
0:01:51 > 0:01:54who's come in with an unusual head complaint.
0:01:54 > 0:01:57I have a big stone in my head - it hurt.
0:01:57 > 0:02:02I'm not surprised - how did that happen?
0:02:02 > 0:02:05It was just another ordinary day in the playground -
0:02:05 > 0:02:10you know how it is. It was break time and Harry was chasing wolves.
0:02:10 > 0:02:12Wolves? In the playground?
0:02:12 > 0:02:15Oh, I suppose they probably do have wolves at Hogwarts.
0:02:15 > 0:02:19It's not Harry Potter, Chris,
0:02:19 > 0:02:21but he was pretending to chase wolves.
0:02:21 > 0:02:23They were everywhere and Harry was running,
0:02:23 > 0:02:26ready to pounce. He was just about to catch one
0:02:26 > 0:02:30when suddenly he tripped and smacked his head on the gravel.
0:02:30 > 0:02:32Ouch.
0:02:32 > 0:02:36It was a good game until I fell over.
0:02:37 > 0:02:40Enter Dr Gareth Hardy.
0:02:40 > 0:02:44He's the man to sort out that stone.
0:02:44 > 0:02:47What have you done to yourself, eh? What's gone on?
0:02:47 > 0:02:48I fell over in the school.
0:02:48 > 0:02:51Dr Gareth examines Harry to check
0:02:51 > 0:02:53for signs of any other injury to his head...
0:02:53 > 0:02:56Just going to look at my light like that.
0:02:56 > 0:02:59- ..then time to tackle the problem. - You've got a big bit of gravel
0:02:59 > 0:03:01- stuck in there, haven't you? - Ow!- Sorry, my friend.
0:03:01 > 0:03:06It's clearly sore so he'll need some anaesthetic cream to numb
0:03:06 > 0:03:08the area before our doctor can get to work.
0:03:08 > 0:03:09Does it hurt?
0:03:09 > 0:03:12- Erm, not a single bit any more. - Good.
0:03:12 > 0:03:14With Harry's head numb,
0:03:14 > 0:03:19Dr Gareth gets plastic tweezers ready to grapple with some grit.
0:03:21 > 0:03:24It looks a bit tricky - yes,
0:03:24 > 0:03:26I think it's jammed in further than we thought.
0:03:26 > 0:03:29You can feel the gravel but it's not coming out,
0:03:29 > 0:03:31I can't flick it back out because it's so deep.
0:03:31 > 0:03:35Maybe a sharper tool will help - or not. Anyone got a hoover?
0:03:35 > 0:03:39Anyway you might be wondering where that stone's gone to.
0:03:41 > 0:03:45Well, behind our forehead are five layers for it to get lost in.
0:03:45 > 0:03:47A combination of skin, fat, fibrous tissue
0:03:47 > 0:03:49and blood cells surrounds our skull.
0:03:49 > 0:03:53When these layers are broken dangerous infection can occur
0:03:53 > 0:03:56so it's important that we get that stone out of Harry's head
0:03:56 > 0:03:58and close up that hole.
0:03:58 > 0:04:03But no-one said it was going to be easy. This is one stubborn stone.
0:04:03 > 0:04:04Is it the Philosopher's Stone?
0:04:04 > 0:04:07- Just drop the Harry Potter thing, Chris.- Sorry.
0:04:07 > 0:04:10We've got some of the gravel out but there's a chunk left right
0:04:10 > 0:04:14deep down, so let's see what we can do. OK?
0:04:14 > 0:04:16We'll come back to Harry in a bit while we go
0:04:16 > 0:04:19and check out another patient - Ron Weasley.
0:04:19 > 0:04:22- You're kidding? - Yes, Chris, I'm kidding.
0:04:26 > 0:04:29This is our lab where we're going to do
0:04:29 > 0:04:31some incredible body experiments.
0:04:31 > 0:04:36- Ow! That really hurt.- Just don't try any of this at home.
0:04:36 > 0:04:38Today - it's muscles.
0:04:38 > 0:04:40Meet Tiny from Tottenham.
0:04:40 > 0:04:42Yeah, we've already met.
0:04:42 > 0:04:45Tiny, put my brother down!
0:04:45 > 0:04:48Go on, mate, put me down.
0:04:48 > 0:04:52You've got a lot of muscle - can we have a look at your biceps?
0:04:52 > 0:04:54Not...Chris, not you.
0:04:54 > 0:04:57- How big is that bicep?- 24 inches.
0:04:57 > 0:05:00So that's 61 centimetres.
0:05:00 > 0:05:05That's amazing - so Tiny's bicep is probably bigger than your waist.
0:05:05 > 0:05:08Tiny's muscles are big and very, very strong
0:05:08 > 0:05:10but what are they made of?
0:05:10 > 0:05:13Well, your muscles are made up of fibres
0:05:13 > 0:05:17formed from millions of individual cells and blood vessels
0:05:17 > 0:05:22deliver the energy that your muscles need in order to move.
0:05:22 > 0:05:25Now, single muscle fibre on its own isn't very strong but when you
0:05:25 > 0:05:28gather a bunch of them together they become much more powerful.
0:05:28 > 0:05:32But Tiny doesn't have any more muscle cells than Chris so how did
0:05:32 > 0:05:34Tiny's muscles get so big?
0:05:34 > 0:05:36Tiny how have your muscles got so big and strong?
0:05:36 > 0:05:38I've been training for 15 years -
0:05:38 > 0:05:41the only day I don't train is Christmas Day cos the gym's shut.
0:05:41 > 0:05:44I don't train on Christmas Day either.
0:05:44 > 0:05:48Right, so when Tiny goes to the gym and lifts weights what happens is
0:05:48 > 0:05:52the heavy weight causes small tears in the muscle fibres
0:05:52 > 0:05:55and that stimulates his body to build those fibres back bigger
0:05:55 > 0:05:56and stronger than before.
0:05:56 > 0:05:59That's how his body got so big and strong.
0:05:59 > 0:06:01Tiny, it's been an absolute pleasure, thank you
0:06:01 > 0:06:03so much for coming in today.
0:06:05 > 0:06:08Chris - never be cheeky to a man called Tiny.
0:06:08 > 0:06:10So how do our muscles actually work?
0:06:10 > 0:06:13Your brain controls your muscles by sending a small electrical
0:06:13 > 0:06:17charge down a nerve to the muscle and that tells the muscle to move.
0:06:17 > 0:06:19What happens when we take control away from the brain
0:06:19 > 0:06:22and stimulate the muscle directly with these electrodes?
0:06:24 > 0:06:27I'm attaching electricity conducting pads to Chris's arm.
0:06:27 > 0:06:30When I press these buttons electrical charges are sent directly
0:06:30 > 0:06:33to his muscles which will make his arm move - see?
0:06:33 > 0:06:35That was me!
0:06:35 > 0:06:37Now let's see how many beakers Chris can down
0:06:37 > 0:06:40while I try to override his brain and control his muscles.
0:06:42 > 0:06:46OK, Chris, 15 glasses - 30 seconds.
0:06:46 > 0:06:49Now, remember, I'm in control you have to drink as much as you can.
0:06:49 > 0:06:51- Right, you ready? - No problem.- Go.
0:06:58 > 0:07:01Chris is struggling because whilst his brain is sending
0:07:01 > 0:07:03electrical charges to move his muscles,
0:07:03 > 0:07:06I'm interfering by sending my own electrical charges.
0:07:08 > 0:07:12With these opposing charges fighting each other Chris's
0:07:12 > 0:07:14co-ordination is all over the place.
0:07:14 > 0:07:16I can't let go of it.
0:07:16 > 0:07:17There we go. Oh!
0:07:19 > 0:07:22BUZZING
0:07:22 > 0:07:25You can't let go!
0:07:27 > 0:07:29Only two left.
0:07:30 > 0:07:34So we've shown that you can override the brain using these
0:07:34 > 0:07:36electrodes but not very successfully.
0:07:36 > 0:07:39The brain is really important for co-ordination of muscles.
0:07:39 > 0:07:41You did really well, Chris. Cheers.
0:07:43 > 0:07:45Oh!
0:07:45 > 0:07:47XAND LAUGHS
0:07:52 > 0:07:55It's not only emergency departments in hospitals that deal with
0:07:55 > 0:07:59- the unexpected.- There are expert teams all over the UK
0:07:59 > 0:08:01ready for action.
0:08:01 > 0:08:03We go on call with the UK emergency services
0:08:03 > 0:08:06getting into the thick of the action to help save lives.
0:08:06 > 0:08:09Today it's Xand's turn on the front line.
0:08:09 > 0:08:11This rapid response vehicle belongs
0:08:11 > 0:08:14to the West Midlands Ambulance Service -
0:08:14 > 0:08:16it's one of over 800 vehicles
0:08:16 > 0:08:19serving 5 million people and today you're coming on call with me to
0:08:19 > 0:08:24see what it's like to be one of the first at the scene of an emergency.
0:08:25 > 0:08:28This fast medical service is on standby ready to help you
0:08:28 > 0:08:3024 hours a day.
0:08:30 > 0:08:35If you have an accident, they're the people who come to your rescue.
0:08:35 > 0:08:38On call with me today is paramedic Jan Vann.
0:08:39 > 0:08:43So because there is so much going on and it's going to be so busy,
0:08:43 > 0:08:46we've got James filming and I've got this camera as well
0:08:46 > 0:08:48so hopefully I can get in close.
0:08:48 > 0:08:51The service takes thousands of 999 calls.
0:08:51 > 0:08:54Jan alone can do 20 emergency callouts in a day!
0:08:54 > 0:08:57We've just had another new case come in.
0:08:57 > 0:09:02We have an 83 year-old lady who's fallen - she has injured her face.
0:09:02 > 0:09:04That's all we know at the moment.
0:09:04 > 0:09:08Usually doctors like me see patients in a hospital where they've already
0:09:08 > 0:09:12had some treatment. We have the full story of what's happened
0:09:12 > 0:09:14but you have to think quickly
0:09:14 > 0:09:16when you're the first on a scene of an accident.
0:09:18 > 0:09:22All the while we're on the way, we're trying to think of all
0:09:22 > 0:09:24the initial steps we need to go through
0:09:24 > 0:09:26and that's what Jan is very, very good at.
0:09:26 > 0:09:29We arrive just five minutes after the call came in and I can
0:09:29 > 0:09:32see our patient Olive with some firemen who have stopped to help.
0:09:32 > 0:09:35Hello, Olive, my name's Janice, I'm a paramedic.
0:09:35 > 0:09:38First thing that Jan's doing is just trying to get a sense of
0:09:38 > 0:09:42whether or not she knows where she is, if she's conscious, bleeding,
0:09:42 > 0:09:45what's her pulse, her blood pressure and all that
0:09:45 > 0:09:48helps Jan start to make decisions about how best to treat her.
0:09:48 > 0:09:50- And no pain on your back where I was pressing?- No.
0:09:50 > 0:09:54No? What we'll do is sit you up so that I can look at your head,
0:09:54 > 0:09:57is that OK? Cor you've been in the wars.
0:09:58 > 0:10:04- How are you feeling now?- I feel all right. I just slipped on that kerb.
0:10:04 > 0:10:06What's very nice to see is that Olive's talking,
0:10:06 > 0:10:10she knows who she is, she knows where she is, so all of that's very,
0:10:10 > 0:10:12reassuring which is nice.
0:10:12 > 0:10:14How much pain are you in with your face?
0:10:14 > 0:10:18- It's sore.- It's sore on her cheek and she's got a nasty bruise to
0:10:18 > 0:10:21the her face and a cut on her nose. She's not been unconscious
0:10:21 > 0:10:23so we're not concerned about a head injury,
0:10:23 > 0:10:26but we need to get some X-rays and make sure she's not broken anything.
0:10:26 > 0:10:30You've cracked your face a whopper, I think we need to get you to
0:10:30 > 0:10:33the hospital for a check up and get an X-ray on that cheek.
0:10:33 > 0:10:36The ambulance arrives to take Olive to hospital for further checks.
0:10:36 > 0:10:38If you get any pain when you're walking let us know.
0:10:38 > 0:10:42What's really reassuring to see is that Olive is able to
0:10:42 > 0:10:44walk into the ambulance by herself and that's a really good sign.
0:10:44 > 0:10:46It's really important that
0:10:46 > 0:10:49the ambulance and paramedics were here as quickly as we were,
0:10:49 > 0:10:52she's gotten into an ambulance, she'll be on the way to hospital.
0:10:52 > 0:10:55Which means it's time for us to get back in the car ready for
0:10:55 > 0:10:58when the next call comes in.
0:10:58 > 0:11:005032 new job received over.
0:11:00 > 0:11:03- Got another job immediately?- Yeah.
0:11:04 > 0:11:07With hundreds of rapid response crews like this on standby
0:11:07 > 0:11:09it means that if you had an emergency,
0:11:09 > 0:11:12expert medical care will be with you in minutes.
0:11:13 > 0:11:17Still to come - Xand goes in search of some blooming bacteria.
0:11:18 > 0:11:22Can you stop your friends standing on their tiptoes?
0:11:22 > 0:11:24We've got an amazing trick to show you how.
0:11:24 > 0:11:27Find out how these squirmy creatures are a marvel
0:11:27 > 0:11:28of modern medicine.
0:11:28 > 0:11:30But not if you're squeamish.
0:11:30 > 0:11:34Now, did you know that although human hair feels soft,
0:11:34 > 0:11:38in fact it's one of the strongest fibres on the planet.
0:11:38 > 0:11:41Really? That's amazing. So is this.
0:11:42 > 0:11:45This is an ordinary town with an ordinary hair salon -
0:11:45 > 0:11:48they're pretty busy.
0:11:48 > 0:11:51Luckily this guy doesn't look like he'll take much time.
0:11:51 > 0:11:56What'll it be today, sir? A no back and sides?
0:11:56 > 0:11:58Wait, hold on what's this?
0:11:58 > 0:12:00GASPS
0:12:00 > 0:12:02This is Sam "Hairy" Smith.
0:12:03 > 0:12:07I've no idea how he got his nickname but he's Britain's hairiest man.
0:12:07 > 0:12:09Yes, he may be bald up top
0:12:09 > 0:12:12but boy does he make up for it everywhere else.
0:12:13 > 0:12:17Sam is covered in thick body hair that measures up to 15 centimetres.
0:12:19 > 0:12:22He shampoos and conditions his chest to keep it soft
0:12:22 > 0:12:26and has to use four towels to dry himself after every shower.
0:12:26 > 0:12:27Whoa!
0:12:31 > 0:12:37Now we all lose hair but most of us lose fewer than 100 strands a day,
0:12:37 > 0:12:39Sam loses up to 300 - that's three times more.
0:12:39 > 0:12:43Well, he's got plenty to spare!
0:12:43 > 0:12:46Now that's amazing.
0:12:51 > 0:12:54Xand, give it up you're never going to match that man.
0:12:54 > 0:12:58OK, it's time to head back to the Accident and Emergency department.
0:12:58 > 0:13:01Let's see how our first patient is getting on.
0:13:04 > 0:13:07Six-year-old Harry came into hospital
0:13:07 > 0:13:09with a stone stuck in his head.
0:13:09 > 0:13:13He'd been playing a game at school with his friends.
0:13:13 > 0:13:16They were in a forest chasing wolves when he tripped
0:13:16 > 0:13:19and fell on his head - as you do.
0:13:19 > 0:13:23So far, the slippery stone has escaped Dr Gareth's grip.
0:13:23 > 0:13:25Enter senior doctor - Dr Lorcan Duane.
0:13:25 > 0:13:28He's going to give Harry some gas to help get that stone out.
0:13:28 > 0:13:31- Hello.- Hello. - The gas will numb the pain receptors
0:13:31 > 0:13:34in Harry's brain so he won't feel a thing.
0:13:34 > 0:13:37Put this over your head like this - there we go.
0:13:37 > 0:13:39You're like a fighter pilot now.
0:13:39 > 0:13:43And he's got some entertainment to take his mind of it all.
0:13:43 > 0:13:45OK here we go - take two.
0:13:49 > 0:13:53The gas is clearly doing the trick - or is it the game?
0:13:53 > 0:13:54Ooh, ooh!
0:13:54 > 0:13:59It looks like he's got it - one slippery stone...
0:13:59 > 0:14:01but with some fine tweezers
0:14:01 > 0:14:06and a super steady hand, Harry's big bonce boulder's banished at last.
0:14:06 > 0:14:09Hooray! Well done, that man.
0:14:09 > 0:14:12But are we sure there's nothing else lurking in there?
0:14:13 > 0:14:15Got a big chunk of gravel out - can't feel anything else,
0:14:15 > 0:14:17we'll make sure there's nothing else there with an X-ray
0:14:17 > 0:14:20which will show up any other bits of stone or gravel in the wound.
0:14:20 > 0:14:21Nice and still.
0:14:21 > 0:14:24A quick head shot done and there's some good news for Harry
0:14:24 > 0:14:26That's where your bump is there -
0:14:26 > 0:14:28and any gravel would show up bright white.
0:14:28 > 0:14:31So there is nothing in there at all?
0:14:31 > 0:14:34There is his brain! Good news, it's the all-clear for Harry.
0:14:34 > 0:14:38Stone free, Harry's patched up and ready for action.
0:14:38 > 0:14:43Hang on, he's not fighting wolves again, is he?
0:14:45 > 0:14:46Ouch!
0:14:49 > 0:14:52We've got some incredible body tricks for you to show your friends.
0:14:52 > 0:14:55Want to find out how to stop your mates standing on their tiptoes?
0:14:55 > 0:14:58We're now going to teach you a trick, so, Xand, stand there.
0:14:58 > 0:15:02Can you stand on your tiptoes? Look at that, well done.
0:15:02 > 0:15:04I want you to stand against the door,
0:15:04 > 0:15:07and the tips of your toes very slightly beyond the door,
0:15:07 > 0:15:10stand so your whole chest is against the door, like that,
0:15:10 > 0:15:11stand on tiptoes.
0:15:13 > 0:15:16Come on, stand on tiptoes.
0:15:16 > 0:15:19CHILDREN URGE HIM ON
0:15:19 > 0:15:21Yeah - no I can't do it - I can't do it.
0:15:21 > 0:15:24CHILDREN SHOW THEIR DISAPPOINTMENT
0:15:25 > 0:15:28And it's not just Xand that can't do it.
0:15:28 > 0:15:32He can't do it, she can't, and nor can he.
0:15:32 > 0:15:36Ahhh, cheating. You moved your feet. We all failed to do it, didn't you.
0:15:36 > 0:15:38Now does anyone know why?
0:15:38 > 0:15:43The door being there can't go forward and you push backwards
0:15:43 > 0:15:45and stay on the ground.
0:15:45 > 0:15:48Alex is absolutely right.
0:15:48 > 0:15:51When you go on tiptoes
0:15:51 > 0:15:54it's not just your muscles pushing you upwards,
0:15:54 > 0:15:56which is easy, you've also got to balance,
0:15:56 > 0:15:59and to do that, your brain tells you to move forwards
0:15:59 > 0:16:02then upwards to distribute your weight evenly,
0:16:02 > 0:16:03and to stop you from falling.
0:16:03 > 0:16:07So we can't lean forwards, you just fall backwards like that.
0:16:09 > 0:16:11Or like that.
0:16:15 > 0:16:17Some people think that kissing is disgusting.
0:16:17 > 0:16:19While some people think it's quite nice.
0:16:19 > 0:16:23Well take a look at this and make your own mind up.
0:16:23 > 0:16:26I'm going to show you how bacteria are GOOD for you.
0:16:26 > 0:16:28Look at all of these people.
0:16:28 > 0:16:31Now they all look different but they all have something in common -
0:16:31 > 0:16:36every single one of them is covered in millions of bacteria.
0:16:36 > 0:16:40We all are. But don't worry this is completely normal.
0:16:40 > 0:16:43In fact, we need bacteria to survive.
0:16:43 > 0:16:45Now this is a Petri dish -
0:16:45 > 0:16:47named after its inventor, Julius Richard Petri.
0:16:47 > 0:16:51Doctors like me use these dishes to grow bacteria
0:16:51 > 0:16:54and see what lives on our bodies.
0:16:54 > 0:16:57That's what I'm going to do now, starting with our lips.
0:17:01 > 0:17:05Who's going to give me a kiss? Anyone going to give me a kiss?
0:17:06 > 0:17:09What I want is a kiss - a nice big kiss on that.
0:17:09 > 0:17:13What we're trying to do is look at what grows in people's
0:17:13 > 0:17:15- mouths and things like that. - Carrots.- Carrots?
0:17:15 > 0:17:18Will anyone give me a kiss?
0:17:18 > 0:17:21Can I ask your girlfriend for a kiss?
0:17:21 > 0:17:24A more manly kiss from you - all right?
0:17:24 > 0:17:25Can we get a nose pick as well?
0:17:25 > 0:17:28It's less exciting than kissing.
0:17:28 > 0:17:31Just going to see what comes out of people's noses and mouths.
0:17:31 > 0:17:33I can't do this in the street, put a cotton bud up my nose.
0:17:33 > 0:17:35Go on.
0:17:35 > 0:17:37That's gross.
0:17:37 > 0:17:42- He's a nice man, isn't he?- Yeah. - Ah, thanks.
0:17:42 > 0:17:44The kisses and nose swabs will now go off to be grown
0:17:44 > 0:17:47in a special laboratory, and after five days,
0:17:47 > 0:17:50it's time to see how the bacteria have blossomed.
0:17:50 > 0:17:53This is Dr Richard Drew, microbiologist,
0:17:53 > 0:17:57and expert of all things gross.
0:17:57 > 0:18:00Now the kisses have gone all furry - well that's bacteria for you.
0:18:00 > 0:18:02So what kind of bugs have we got here?
0:18:02 > 0:18:06We have a lot of streptococci of the slightly greeny colour on the lips.
0:18:06 > 0:18:08But up here where there nose would have been
0:18:08 > 0:18:10you can see the yellowy bugs growing,
0:18:10 > 0:18:14and these ones are more like staphylococcus aureus.
0:18:14 > 0:18:15Sounds like a dinosaur!
0:18:15 > 0:18:18It's completely normal to have these bugs in your mouth -
0:18:18 > 0:18:19so all of us have them.
0:18:19 > 0:18:22We could have got a kiss from everyone in Liverpool,
0:18:22 > 0:18:25- and they all would have grown these two bacteria?- Absolutely.
0:18:25 > 0:18:28You might think it's disgusting but bacteria are really useful.
0:18:28 > 0:18:31They're important to have, for example we've got bugs
0:18:31 > 0:18:33in our gut, and they help to digest food.
0:18:33 > 0:18:34And they fight disease too.
0:18:34 > 0:18:38By increasing the acidity in your gut to the point that bad
0:18:38 > 0:18:40bacteria don't want to move in.
0:18:40 > 0:18:42So what about the weird things that grow up our nose?
0:18:42 > 0:18:45This one we found a lot of E.Coli
0:18:45 > 0:18:47and a lot of staphylococcus, as well.
0:18:47 > 0:18:50Now E.Coli can be dangerous, they do cause disease,
0:18:50 > 0:18:53but living up your nose, or commonly, living up your bottom,
0:18:53 > 0:18:56is completely normal and completely safe.
0:18:56 > 0:18:58It's when it gets into blood or other bits of your body
0:18:58 > 0:19:00which shouldn't have it,
0:19:00 > 0:19:02like the brain or the joints, that it can cause problems.
0:19:02 > 0:19:06- This one looks like cheesecake. - Mmm, yummy.
0:19:06 > 0:19:10So, our bodies are covered in bacteria, but that's not just normal,
0:19:10 > 0:19:14it's good, because our bodies are amazing at protecting
0:19:14 > 0:19:18the bits that need to be protected, which is why kissing is fine.
0:19:18 > 0:19:20Bit disgusting, but fine.
0:19:22 > 0:19:23Ouch.
0:19:37 > 0:19:40The correct answer is B.
0:19:40 > 0:19:45You shed 30 to 40 thousand dead skin cells every minute of every day,
0:19:45 > 0:19:49but don't worry your body continually makes new ones too.
0:19:51 > 0:19:54What's that sound? Can you hear that buzzing sound?
0:19:54 > 0:19:57No, I don't know what you're talking about.
0:19:57 > 0:19:59Seriously, there's buzzing everywhere.
0:19:59 > 0:20:01Perhaps this is a case for....
0:20:01 > 0:20:03Investigation Ouch.
0:20:03 > 0:20:06BUZZING
0:20:13 > 0:20:14Yes, this is a room full of flies
0:20:14 > 0:20:15and no, I haven't had a bath in weeks
0:20:15 > 0:20:17but we're not going to talk about that.
0:20:17 > 0:20:20If you're wondering what these flies have to do with modern medicine,
0:20:20 > 0:20:22I'm about to tell you.
0:20:24 > 0:20:26This is Ceri Jones, and he's a fly breeder.
0:20:26 > 0:20:29Yes, you heard right, he breeds flies.
0:20:29 > 0:20:31Ceri, how many flies have you got in this room?
0:20:31 > 0:20:34- We've got 36,000 flies in this room. - Do you count them all?
0:20:34 > 0:20:35Every single one.
0:20:35 > 0:20:38And I bet he knows all their names.
0:20:38 > 0:20:40What kind of flies are they?
0:20:40 > 0:20:43They're the common green bottle as you'd find in your house.
0:20:43 > 0:20:47But these flies are growing up in a completely sterile,
0:20:47 > 0:20:48bacteria-free environment,
0:20:48 > 0:20:51and they're eating a very special dinner. Mmmm, yum.
0:20:51 > 0:20:55What we've got here is a big box full of flies eating raw liver.
0:20:55 > 0:20:58Disgusting. But there is a point to it. Why?
0:20:58 > 0:21:00The reason we're feeding them on raw liver
0:21:00 > 0:21:03is to build up their strength so they've got enough
0:21:03 > 0:21:06strength to lay the eggs, because it's the eggs we're interested in.
0:21:06 > 0:21:09Flies lay eggs, and the eggs hatch into larvae
0:21:09 > 0:21:10or maggots like this one.
0:21:10 > 0:21:12Hello beautiful.
0:21:12 > 0:21:15And it's the maggots that have a special medical use,
0:21:15 > 0:21:18but before we get to that, those eggs have to be harvested.
0:21:18 > 0:21:22It's basically a manual process of removing the eggs from the liver.
0:21:22 > 0:21:24They're extremely small,
0:21:24 > 0:21:27and there'll be between ten to 20,000 eggs in each dish.
0:21:27 > 0:21:31Yes, this white stuff is thousands of eggs all stuck together.
0:21:31 > 0:21:34- How long has this liver been in there?- About two hours.
0:21:34 > 0:21:38- So in two hours 600 flies have laid 20 thousand eggs.- Yes.
0:21:38 > 0:21:41That'd be impressive if it was chickens, wouldn't it?
0:21:42 > 0:21:46In these fly eggs, little white worm like larvae hatch -
0:21:46 > 0:21:48these are maggots. Nice.
0:21:48 > 0:21:50Now you've probably seen maggots before,
0:21:50 > 0:21:52and these are the same scary maggots
0:21:52 > 0:21:54that you see in dead animals and in horror movies,
0:21:54 > 0:21:57but there's one really important difference -
0:21:57 > 0:21:59these maggots are sterile.
0:21:59 > 0:22:02These are superhero maggots.
0:22:02 > 0:22:04Being completely germ free means
0:22:04 > 0:22:07they can be used in hospitals for a very important job -
0:22:07 > 0:22:11to clean dead skin away from large wounds allowing them to heal.
0:22:11 > 0:22:14So these are nice maggots.
0:22:14 > 0:22:15Kind of.
0:22:15 > 0:22:20In here there's a foot with a wound with 500 maggots in it.
0:22:20 > 0:22:24Let's go see them in action. Not if you're squeamish.
0:22:24 > 0:22:27Prepare to look away - but not yet.
0:22:27 > 0:22:29This is Ros Thomas, she's a foot doctor or podiatrist.
0:22:29 > 0:22:31She's going to be tackling this.
0:22:31 > 0:22:35It's a foot with a nasty wound on the bottom of it -
0:22:35 > 0:22:37and a sock, so it's still all right to look.
0:22:37 > 0:22:40Maggots have been on the wound for two days
0:22:40 > 0:22:43and now it's time to see what they've done. Get ready people.
0:22:43 > 0:22:45Hopefully they've had a good feed now,
0:22:45 > 0:22:48hopefully we'll see a nice clean wound.
0:22:48 > 0:22:49Prepare yourself,
0:22:49 > 0:22:52it can look a bit icky, and there we go.
0:22:52 > 0:22:56- Are you looking?- Cleaned up quite a bit - not completely
0:22:56 > 0:22:58and they're still quite lively there.
0:22:58 > 0:23:02They're our little blind legless surgeons that help to
0:23:02 > 0:23:03clean up all the mucky tissue.
0:23:03 > 0:23:07- So they're very precise surgeons? - They're very precise surgeons, yes.
0:23:07 > 0:23:08Take a closer look.
0:23:08 > 0:23:11Although they can eat dead flesh maggots don't have any teeth.
0:23:11 > 0:23:14They vomit powerful chemicals onto the wound,
0:23:14 > 0:23:15which dissolves dead flesh,
0:23:15 > 0:23:17and the maggot can then eat that,
0:23:17 > 0:23:19along with any bacteria that are around,
0:23:19 > 0:23:23and that is what makes the perfect wound cleaning machines.
0:23:23 > 0:23:26It's looking so much better than it was originally,
0:23:26 > 0:23:29cause it was completely covered with yellow mucky tissue.
0:23:29 > 0:23:33Yes, it was, but that yellow tissue was all dead flesh.
0:23:33 > 0:23:35So although it might look worse now...
0:23:35 > 0:23:38Are you still looking? ..in fact it's much healthier.
0:23:38 > 0:23:41This patient's wound has improved a lot in two days,
0:23:41 > 0:23:44but don't worry the maggots won't eat the healthy flesh,
0:23:44 > 0:23:45only the dead stuff.
0:23:45 > 0:23:49No-one's going to be eaten alive. So that's a relief.
0:23:49 > 0:23:52We normally think of maggots as eating rotting things in bins,
0:23:52 > 0:23:54but it's this ability to just eat rotten flesh
0:23:54 > 0:23:56that makes them such good healers.
0:23:56 > 0:23:59Whereas a human surgeon might have to amputate a foot,
0:23:59 > 0:24:03500 blind tiny legless surgeons are able to eat only the dead flesh,
0:24:03 > 0:24:05and therefore save the foot.
0:24:08 > 0:24:12Our next patient has had a particularly nasty accident.
0:24:12 > 0:24:16Luckily the team is ready to fix them.
0:24:20 > 0:24:24In Manchester 12-year-old, Ryan has come in by ambulance
0:24:24 > 0:24:25with a nasty neck injury,
0:24:25 > 0:24:28after an attempt to jump like James Bond went wrong.
0:24:28 > 0:24:31It was like karate kick, I thought I'd broke my neck,
0:24:31 > 0:24:34but if I'd broke my neck I would have been like dead.
0:24:34 > 0:24:36Well, luckily you're not.
0:24:36 > 0:24:38But I'm not sure you'll be the next 007 either.
0:24:38 > 0:24:40So how did this happen.
0:24:40 > 0:24:42JAMES BOND THEME
0:24:42 > 0:24:44It was just another ordinary day at school.
0:24:44 > 0:24:47It was lunchtime, and Ryan, being a secret agent,
0:24:47 > 0:24:50- was on a top secret mission. - He's a secret agent?
0:24:50 > 0:24:53OK, he was pretending to be a secret agent.
0:24:53 > 0:24:57Cool, calm and collected, 00-Ryan stepped from the shadows.
0:24:59 > 0:25:04In one swift movement he unleashed his killer karate kick.
0:25:04 > 0:25:07When suddenly his mate grabbed his foot and Ryan dropped on his head.
0:25:07 > 0:25:09Ouch.
0:25:09 > 0:25:12After such a serious accident, Ryan is on a fixed board with
0:25:12 > 0:25:16support pads to prevent his neck and spine from moving.
0:25:18 > 0:25:23Enter, Dr Craig Ferguson - he'll check out our wannabe 007.
0:25:23 > 0:25:26- Any pain in your back, or is it just your neck?- My neck.
0:25:26 > 0:25:29Head injuries are common - the James Bond theme is less common,
0:25:29 > 0:25:32but he's got neck pain, so we have to take it seriously.
0:25:32 > 0:25:36Dr Craig needs to find out if Ryan has broken any bones,
0:25:36 > 0:25:38but to do that the team have to move him
0:25:38 > 0:25:41in a special way, keeping his head and body in line.
0:25:42 > 0:25:45That's because the bones in your neck and back protect the important
0:25:45 > 0:25:49nerves that run from the brain into the body through your spinal cord.
0:25:49 > 0:25:52If we touch all the way down, it's not sore anywhere,
0:25:52 > 0:25:54is that right Ryan? Want to get some x-rays
0:25:54 > 0:25:56to make sure the bones are intact.
0:25:56 > 0:25:59If the bones are intact, it means it's much less likely that
0:25:59 > 0:26:00he's suffered any nerve injury.
0:26:00 > 0:26:05Fingers crossed, get ready for your close up, Ryan.
0:26:05 > 0:26:08There are seven small bones in the neck,
0:26:08 > 0:26:11and getting shots of them all can be tricky.
0:26:11 > 0:26:13First his teeth are in the way.
0:26:13 > 0:26:15I suppose they could take them all out.
0:26:15 > 0:26:18we're going to ask you to open your mouth a little bit for us now.
0:26:18 > 0:26:20Yeah, that's probably a better idea.
0:26:20 > 0:26:24With his mouth open the X-ray can see the bones in his neck.
0:26:24 > 0:26:26OK, wide as you can, wide as you can,
0:26:26 > 0:26:30that's it, brilliant. And relax your mouth again.
0:26:30 > 0:26:32And now his shoulders are in the way.
0:26:32 > 0:26:33They can cut them off.
0:26:33 > 0:26:35Pull down, like you're trying to touch your toes.
0:26:35 > 0:26:37Yeah, that's probably better.
0:26:37 > 0:26:42Keep pulling down to your toes - lovely and relax.
0:26:42 > 0:26:46- Yeah, that's brilliant. - I hope I haven't fractured anything.
0:26:46 > 0:26:48I want to get back to playing cricket.
0:26:48 > 0:26:51OK, let's just check out your X-rays first,
0:26:51 > 0:26:53then you can get on with winning the Ashes.
0:26:53 > 0:26:55I'm making sure that the bones are aligned,
0:26:55 > 0:26:57and I'm making sure there's no breaks
0:26:57 > 0:26:59in any of the bones I can see.
0:26:59 > 0:27:01I think there might be good news for Ryan.
0:27:01 > 0:27:04I've had a look at all your pictures, they all look fine -
0:27:04 > 0:27:05I don't see any broken bones,
0:27:05 > 0:27:07everything looks right,
0:27:07 > 0:27:09I think you may be a bit stiff and sore for the next few days,
0:27:09 > 0:27:12I think it's going to get gradually better after that.
0:27:12 > 0:27:15It's been a lucky escape for Ryan.
0:27:15 > 0:27:18It feels like a relief because I don't want to break my neck.
0:27:18 > 0:27:19Who would?
0:27:19 > 0:27:21You can go back to school tomorrow,
0:27:21 > 0:27:22but no more James Bond moves, please.
0:27:22 > 0:27:24OK.
0:27:24 > 0:27:28JAMES BOND THEME
0:27:31 > 0:27:32Next time:
0:27:32 > 0:27:36There's more exclusive behind-the-scenes emergency access.
0:27:36 > 0:27:38With a hook stuck in her hand.
0:27:38 > 0:27:41I get my hands on a real human brain.
0:27:41 > 0:27:42Nice.
0:27:42 > 0:27:45This man reveals an eye popping ability.
0:27:45 > 0:27:47- THEY SHRIEK - When we'll be uncovering another...
0:27:47 > 0:27:49- BOTH:- Operation Ouch.
0:28:03 > 0:28:06Subtitles by Red Bee Media Ltd