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Wednesday, April 18, 2012

Pass the ice cream: Fat people can be as healthy as thin people (as long as they exercise)

For those who can't resist a second biscuit with their cup of tea, there's good news.
Fat people can be as healthy as thin people as long as they lead a healthy lifestyle, a study has shown.
Eric M Matheson and a team of doctors from the Medical University of South Carolina, tracked the BMIs of 12,000 people over 14 years.
Results: Doctors found that obese people who took part in 'healthy activities' carried roughly the same risk of dying young as their thinner counterparts
Results: Doctors found that obese people who took part in 'healthy activities' carried roughly the same risk of dying young as their thinner counterparts
They found that obese people who took part in 'healthy activities' like eating five or more fruits and vegetables daily, exercising regularly, consuming alcohol in moderation, and not smoking, carried roughly the same risk of dying young as their thinner counterparts.
The obese people who did not have a healthy lifestyle were most at risk, the study published in the Journal of the American Board of Family Medicine, concluded.
 
Lisa Wade, an Assistant Professor of Sociology at Occidental College, Los Angeles, wrote on The Society Pages, the study showed that 'thinness is protective if people are doing absolutely nothing to enhance their health.'
Graph: The 'hazard ratio' on the Y axis shows the risk of dying young, with one being the baseline, while the 'habits' on the X axis shows the number of healthy habits a respondent had
Graph: The 'hazard ratio' on the Y axis shows the risk of dying young, with one being the baseline, while the 'habits' on the X axis shows the number of healthy habits a respondent had
She added: 'Overweight and obese people can have the same mortality risk as "normal" weight people; therefore, we should reject the idea that fat people are “killing themselves” with their extra pounds.  It’s simply not true.'
Dr Matheson examined the association between healthy lifestyle habits and mortality in a sample of 11,761 men and women with BMIs ranging from normal weight to obese.
The purpose of the study was to find an association between healthy lifestyle habits and mortality with a wide range of BMIs.


Why control pants can give you panic attacks... and the other hazards of too-tight clothes

Wearing clothes that are too small for you doesn’t just look unsightly — as MATTHEW BARBOUR reveals, they can trigger all sorts of health problems. 

CONTROL PANTS

RISKS: Stress incontinence, heartburn, hyperventilation, panic attacks.
Big squeeze: TV's Denise Welch in control pants
Big squeeze: TV's Denise Welch in control pants
Many women swear by control pants, which hold your stomach in to make it look flatter. But tummy-taming underwear could also cause some unexpected — and unpleasant — side-effects.
‘Control underwear is the 21st-century version of the corset, with all the same health risks,’ says Richard Bricknell, director at the Bristol Physiotherapy Clinic.
The increased pressure on your lower stomach can force acid up to the gullet, leading to heartburn. Over time, this could contribute to inflammation, ulcers and, in extreme cases, oesophageal cancer.
Meanwhile, by artificially holding in your stomach, control pants prevent your diaphragm from descending fully while breathing, which can lead to hyperventillation, panic attacks and stress incontinence.
‘If there’s pressure on your stomach and you sneeze or cough, that pressure is forced down and not out, and could lead to an embarrassing leak,’ he says. 
‘Conditions such as reflux and irritable bowel syndrome can also worsen because of tight pants. Worn day in, day out, there could be very real health risks.’

TIGHT TROUSERS

RISKS: Nerve pain in the leg, heartburn, aggravated hernia.
Tight fit: Wearing skinny jeans like Carol Vorderman can cause nerve pain in the leg
Tight fit: Wearing skinny jeans like Carol Vorderman can cause nerve pain in the leg
Trendy skinny jeans could, in fact, leave you hobbling. Research published in the Canadian Medical Association Journal reported that figure-hugging trousers significantly increased the risk of the condition meralgia paresthetica, compression of the nerve running from the pelvis into the outer thigh.
This results in sensations of tingling, numbness and burning. But women who switched from skinny jeans to looser clothing found their symptoms disappeared after four to six weeks.
Meanwhile, overweight men who squeeze into tight trousers might aggravate an otherwise silent abdominal hernia, warns Dr Octavio Bessa, a gastroenterologist at Stanford University.
Writing in the Journal of the American Medical Association, he said 80 per cent of patients who presented with abdominal pain and heartburn after meals wore trousers at least 3in smaller than their waist.
A belt or waistband should sit just above the hips, he says, so trousers can ‘hang’ without placing pressure on the abdomen.

TIES AND COLLARS

RISKS: Glaucoma, headaches, dizziness, shoulder pain.
211%
The annual increase in sales of control pants in one High Street store
Shirts with constricting collars and over-tight ties can increase the risk of serious eye disease, according to a study in the British Journal of Ophthalmology.
They put pressure on the jugular vein in the neck, in turn raising the internal pressure of the eye, causing it to bulge. Increased pressure is one of the primary causes of glaucoma, a sight-threatening disorder affecting thousands of Britons.
Seven in ten men buy dress shirts with a collar size too small for them, according to a Cornell University study, suggesting they may be refusing to accept middle-aged spread.
This can restrict blood flow to the brain through the carotid arteries, leading to headaches, blurred vision and dizziness, as well as increasing tension in the back and shoulders.

SHOES 

RISKS: Fungal foot infections, bunions, hammer toes.
High risk: Victoria Beckham's love of heels has given her back problems and bunions
High risk: Victoria Beckham's love of heels has given her back problems and bunions
British women now spend more than £30 million a year fixing medical problems such as bunions, corns, and trapped nerves caused by ill-fitting shoes.
Bunions run in families, but they are often triggered by ‘years of squashing feet into tight shoes and can be excruciatingly painful if left untreated,’ says podiatrist Simon Costain, of the Centre for Gait and Posture in London.
Meanwhile, cramping your toes in shoes that are too small is the main cause of hammer toe, a deformity caused by bending the toe joints out of shape so they curl up instead of lying flat.
And athlete’s foot, a fungal infection, can affect anyone who wears tight shoes for long periods due to insufficient airflow around the feet. The retained heat and moisture provide the perfect conditions for the fungi to thrive in.
‘Any tight shoes can lead to blisters, corns and calluses, ingrown toenails and swollen ankles, forcing fluid out of the feet into the ankles where it pools,’ adds Costain.
Swollen ankles can also be caused by tight socks, belts, bras or even rings, he says.
‘The lymph system is like a river, and any dam placed at any point in the river stops the flow to points below the dam.’
Tight shoes are particularly bad for diabetics, who are at serious risk of foot problems such as ulcers, which, if become infected, can require amputation of the leg.

UNDERWEAR

RISKS: Cystitis, fungal infections, male infertility.
Wrong thong: Ill-fitting underwear can cause numerous health problems (posed by model)
Wrong thong: Ill-fitting underwear can cause numerous health problems (posed by model)
Having a visible panty line isn’t just a fashion faux pas — it could also cause a nasty yeast infection, cautions Dr Geeta Nargund,  senior consultant gynaecologist and lead for reproductive medicine services at St George’s University Hospital in London.
‘Tight knickers of any style, particularly those made of synthetic materials which don’t allow air and moisture to circulate, can cause thrush and a range of other itchy skin conditions.
‘Thong-style knickers can also transfer bacteria forwards, leading to infections such as cystitis.
Bacteria thrive in the warm, moist environment created by tight pants — nylon and other synthetic materials are particularly bad, but  even tight cotton can cause  problems,’ she says.
‘The risk of infections is particularly high with women with lower oestrogen levels who have gone through, or are going through, the menopause.’
Tissues in this area need  normal oestrogen levels to remain moist and healthy and protect against bacteria.
‘For these women, wearing tight underwear should be avoided at all costs.’
She adds that men are at risk, too, as figure-hugging underpants can cause infertility and damage to the testicles. ‘Testicles hang in the scrotum to keep cool — they need to be 2.2c cooler than the core body temperature,’ explains  Dr Nargund.
‘If men wear tight underwear or trousers, the testicles become too hot, so testosterone and sperm production decrease — a common reason for male infertility.
‘If a couple are having infertility problems, one of the first things I suggest is the man switching to loose-fitting boxer shorts.’
Simon Costain adds a common and often missed cause of ankle and leg swelling in men is tight pants, because they prevent the natural flow of lymph fluid.

BRAS

RISKS: Back and shoulder pain, breathing problems.
The current method of bra measuring is outdated, researchers at the University of Portsmouth claimed last month.
Most stores measure under the bust and then around the fullest part, to get a back and cup size. But the technique, formulated in the Thirties, was only designed to go up to a D-size cup, while more than half of British women now have a cup size of E or greater.


If the cup or back size isn’t correct, the weight of the breasts goes straight to the shoulders rather than spread through the back evenly, explains chiropractor Rachael Lancaster, from the Freedom Back Clinics in Leeds.
‘I regularly see women with large breasts and severe mid-back pain because their bras don’t provide enough support. Combined with bad posture and sitting at a desk for hours on end, the spine is pulled out of alignment.’
But it’s not just big-busted ladies who are suffering.
‘Increasingly, I’m seeing small-breasted women who have back pain because they wear poorly-fitting gel-filled bras, which are designed to create the illusion of larger breasts,’ says Lancaster. ‘The weight of the bra puts extra pressure on the back.’
Meanwhile, push-up bras may restrict movement of the collar bone and upper ribs, which can lead to pain, breathing problems and even muscle wastage.
‘Getting a proper bra fitting is paramount,’ says Lancaster.
The Portsmouth researchers said women should take the five-step ‘best fit’ approach: trying the  same bra in a number of sizes; assessing the length of the straps; the shape of the underwire; how well the back and cups fit; and whether the front band is in contact with the breastbone.

Secrets of an A-list body: How to get thighs like David Beckham's

By Peta Bee
We reveal how to get the enviable physiques of the stars. This week: David Beckham’s thighs.
He might be in the twilight of his football career, but Beckham’s thighs are in as good a shape as ever.
His exercise regime used to include lots of weight lifting, but that caused him to gain a stone in weight and, he said, made running difficult.
Toned: Footballer David Beckham regularly goes running and does leg strengthening exercises to stay in shape
Toned: Footballer David Beckham regularly goes running and does leg strengthening exercises to stay in shape
So a few years ago he switched to doing an hour of Pilates a day, and more running and exercises to strengthen his upper legs.

 
He also refined his diet and his body fat reportedly dropped from 13.7 per cent to 8.5 per cent as a result.

TRY THIS:

Cone-jumping is a footballer’s favourite and a great way to strengthen and tone thighs.
Place five or six small cones about 50cm apart in a straight line on a non-slip floor or outside.
Stand 1ft behind the first cone with your feet hip-width apart, arms by your sides.
Fully extending your hips, knees and ankles, jump over the top of the first cone. Keep your feet level with each other in the air.
Land softly, bending forward at the waist and rolling into the heels. Push hips down to absorb the impact of landing.
With a brief pause, jump upwards and over the next cone. Continue for all six and repeat two or three times.

We really do like to be beside the seaside, say psychologists

By Jenny Hope

It may be something to do with the soothing sound of the waves but – in accordance with the music hall song – we do like to be beside the seaside, psychologists have confirmed.
Given the choice of the beach, the countryside or a town park – the coast wins hands down.
A study of data on 2,750 people aged eight to 80 collected by Natural England was analysed by researchers at the universities of Exeter and Plymouth.
Bliss: The study found trips to the coast led people to feel 'refreshed and calm'
Bliss: The study found trips to the coast led people to feel 'refreshed and calm'
It showed people of all ages who had made a recent visit to the seaside, countryside or open spaces in towns reported positive feelings.
But trips to the coast ‘led to the highest positive feelings, with more people feeling refreshed and calm’, said Mathew White, of the European Centre for Environment and Human Health in Truro, Cornwall.
 
Dr White will tell the British Psychological Society’s annual meeting in London today that feeling good beside the seaside may be ‘hard-wired’ into people’s brains.
Another theory is that people are continually exposed to ‘promotion’ of the sea as a ‘good thing’.
He said the findings could benefit health as there was mounting  evidence that positive feelings may protect against ill-health.
Reflex: Psychologists think feeling good beside the sea may be 'hard-wired' into people's brains
Reflex: Psychologists think feeling good beside the sea may be 'hard-wired' into people's brains

The mother who cannot laugh or love: Rare disorder means she collapses every time she expresses strong emotion

  • During an attack Kelly can see and hear but her body is temporarily paralysed
  • Attacks can last anything from a few seconds to an hour

A woman with a rare condition that means she collapses every time she laughs fears she may have passed the rare illness onto her young son.
Kelly Timson cannot visit a comedy show or even go to the pub with her friends as every time she laughs, she collapses in a literal fit of giggles.
She suffers from a rare neurological condition called cataplexy which means her body goes into a state of total paralysis in response to strong emotions such as amusement, surprise, anger and even love. 
Inherited? Kelly Timson has both cataplexy and narcolepsy. Her younger son Ronnie is undergoing tests after experiencing a fit a few weeks ago
Kelly Timson
Inherited? Kelly Timson has both cataplexy and narcolepsy (right). Her younger son Ronnie is undergoing tests after experiencing a fit a few weeks ago
Just gazing in motherly admiration at her two young children Charlie, five, and Ronnie, two, brings on an attack leaving Kelly totally unable to move or speak.

 
Often, she finds herself collapsed in a heap on the floor having injured herself on the way down and once she nearly suffocated after landing face-down on the sofa.  She suffers up to 20 cataplexy attacks a day and has to have her mother or brother around her all the time in case she collapses. 
She also suffers from the related condition narcolepsy which means she randomly falls asleep throughout the day, no matter what she is doing.
Limits: Kelly can never have a bath alone as she could have an attack and drown
Limits: Kelly can never have a bath alone as she could have an attack and drown
Kelly, 25, from Ashford, Kent, said: 'I've lost count of the number of times I've fallen asleep face down in my dinner. I can't even go to a restaurant with my boyfriend in case I nod off at the table. It's so embarrassing. 
'Once I had an attack of cataplexy in the supermarket and then another and another. I must have had about 20 in a row and I think people must have thought I was drugged or drunk. Every time I stood up, I collapsed again.
'When I have an attack, I can see and hear but I can't move or communicate at all. It can last a few seconds or it can last for an hour.
'The worst times are when there is no one around. I might be laid on the floor, completely paralysed and the boys will be pulling all the food out of the cupboards and there's nothing I can do. That's why I don't like to be left alone with the boys in case anything happens to me or them.'
Kelly first noticed the narcolepsy when she was 16 and would fall asleep suddenly in front of the television or while sat on the sofa, even after a long night's sleep.
Her condition worsened over time until the point where she never knew where she might nod off.
Kelly said: 'I would be in the middle of eating my dinner and I would just fall asleep or I would fall asleep in the bath.
'I used to work on a dunking doughnuts kiosk as a teenager and once I fell asleep while I was frothing some milk for a cappuccino, which is impressive when you think of the noise those machines make. I just fell asleep standing up and I was lucky I didn't burn myself on it.
'Eventually I saw a consultant who diagnosed me with narcolepsy and gave me some medication.'
Then, at the age of 19, she fell pregnant with Charlie and everything changed.  Suddenly, Kelly would find herself going limp and heavy while she was holding her new baby. Her head would become heavy and loll to one side and her arms would flop to her sides. 
She said: 'I would have to call to my mum to come quickly and grab Charlie off me in case I dropped him.
'I would just be looking at him and thinking how much I loved him and then all of a sudden my arms would go floppy.
'I was really worried because I was terrified of hurting him.'
Over time, Kelly found her attacks were becoming more frequent and more severe, causing her to become completely paralysed and unable to speak whenever she had one. In 2007, she was officially diagnosed with cataplexy. 
While cataplexy is extremely rare, 70 per cent of sufferers also suffer from narcolepsy. In addition, Kelly also suffers from poor short term memory and often forgets what she did the previous day. 
Kelly found her attacks got worse after having Ronnie (left) and Charlie
Kelly found her attacks got worse after having Ronnie (left) and Charlie
Kelly said: 'I often panic when I'm going into an attack and I'm always hurting myself. One time I landed on the sofa on my nose and I couldn't move my head in order to breathe.  The cushion was pushed up against my face and I thought I was going to suffocate.
'My boyfriend was asleep on the sofa and I couldn't even make a sound to alert him to what had happened.
'It felt like it lasted for ages although it was probably less than a minute and then the attack started to ease off so I was able to move my neck just enough to breathe. At times like that the attacks can feel like forever.
'Another time I went down and hit the doctor's desk while I was in the middle of talking to her. She didn't even realise what was happening until it was too late and I had smacked my head on the edge.'
Like many epileptics, Kelly needs constant supervision and cannot drive or even take a bath on her own. However, she can suffer up to 20 attacks a day and is not entitled to extra support for her condition.
Now she is worried she may have passed the condition onto her son Ronnie, who suffered a fit in a supermarket two weeks ago. He is currently awaiting tests to see if he has inherited either of his mother's rare conditions.
She said: 'I'd hate for Ronnie to have it as it affects every aspect of my life.
'I'd love to be able to go for a drink and have a laugh with my friends, but I can't. As soon as someone cracked a joke I would be paralysed on my barstool and it would be mortifying. 
'I'm trying some new medication at the moment and I'm waiting to see how that goes. With any luck it will help my condition and I might even be able to go to a comedy club someday.'

Landmark British study that could revolutionise breast cancer treatment: It turns out it's actually TEN different diseases

By Fiona Macrae

Breast cancer is effectively ten different diseases, according to breakthrough research that could revolutionise treatment.
The biggest study of its kind in the world has classified the country’s most common cancer into ten separate types.
The finding brings doctors closer to the holy grail of tailoring treatments to individual women. The rewriting of the rule book on breast cancer could also lead to new drugs and better diagnostic tests.
Precise: Therapies could be tailored to individual patients (picture posed by model)
Precise: The new findings mean therapies could be tailored to individual breast cancer patients (picture posed by model)
Dr Julia Wilson, of Breakthrough Breast Cancer, said: ‘This is incredibly exciting research which has the potential to change the face of breast cancer; from how we diagnose and treat it, to how we follow it up afterwards.’
However, the need for more research means it will be three to five years before women with breast cancer can start widely reaping the benefits of the shake-up in treatment.
 

9.8 million users added by Mobile operators in Jan 2012

 Despite great strides being made in breast cancer in recent years, the disease is still one of Britain’s biggest killers, claiming the lives of almost 1,000 women a month. And, with almost 50,000 new cases a year, it is the country’s most common cancer.
When a woman is diagnosed, her tumour is classified into one of four types, simply by looking at tissue from it down a microscope. This provides a guide as to how long a woman is likely to survive and which drugs will be effective.
But the system is far from infallible, with some treatments failing unexpectedly and other women surprising doctors by beating a supposedly extra hard-to-treat tumour.

MORE CASES... BUT MORE SURVIVORS

Around 130 women are diagnosed with breast cancer each day. Rates have risen by more than 50 per cent over the last 25 years and by 6 per cent in the past decade.
This means that a woman today has a one in eight chance of developing the disease.

According to experts the reasons for this rise are complex and could reflect an increase in detection rates through screening – as well as lifestyle factors such as increased alcohol consumption and obesity and the rising number of women who decide not have children.

However, the picture is not as bleak as it seems. More women are surviving the disease.

In the 1970s, five in ten with breast cancer were still alive five years after diagnosis. Now it’s more than eight out of ten. And women diagnosed with breast cancer now are twice as likely to be alive at least ten years later than their counterparts of 40 years ago.

Almost two out of three women with breast cancer survive beyond 20 years.

But there is still more to be done. As Britain’s biggest cancer killer after lung cancer, the disease claims around 12,000 lives a year. More than half of these are in women over 70.
The latest study, detailed in the prestigious journal Nature and funded by Cancer Research UK, helps explain why.
The painstaking analysis of the genetics of 2,000 tumours, including many from women in London, Cambridge and Nottingham, has revealed there to be ten sub-types of the disease. Each tumour within a particular group shares similar genes and different women with the same type have similar odds of survival.
The ‘exquisitely detailed’ analysis also revealed several new genes that drive the growth and spread of the disease. This opens the door for the development of drugs that counter their effects. Knowledge of the genetics of each type of the disease will also speed the development of drugs, allowing women to have treatments tailored to their tumour. A handful of such ‘wonder-drugs’, including Herceptin, are already in use.
The breakthrough could also speed the search for an especially hard-to-treat form of breast cancer known as ‘triple-negative’.
A radiographer checks an x-ray in a breast screening unit: A new study has found the common cancer is made up up of 10 distinct types
A radiographer checks an x-ray in a breast screening unit: A new study has found the common cancer is made up of ten distinct types
It also helps explain why around 5 per cent of women who have the most common form of the disease and should have a relatively good prognosis do very badly. Cambridge University’s Professor Carlos Caldas, the study’s co-leader, said: ‘We are failing these women. They are a prime target for new trials that try to identify better treatments.’
Perhaps just as importantly, the study, which was done in collaboration with Canadian researchers, could spare some women unnecessary treatment. Knowing how to target drugs better will mean that those with a tumour type that is easier to treat will be spared gruelling therapies that provide no extra benefit.
The need for more research means the first tests are three to five years from widespread use. Development of new drugs will take even longer.
However, the results will change the way clinical trials for new treatments and drugs are run, so some women will benefit within months.

Dr Harpal Singh, chief executive of Cancer Research UK, said the study was the culmination of decades of research.
He said: ‘This really changes the way we think about breast cancer – no longer as one disease but actually as ten quite distinct diseases, dependent on which genes are switched on and which ones aren’t for an individual woman.
Mammograms are used to screen a woman for breast cancer
Breakthrough: It is hoped the finding could lead to new drugs and better tests
‘This research will help us make a much more accurate, much more precise, diagnosis for every patient.
‘That will enable us to make sure that we really target the right treatment to the right woman based on those who are going to benefit, or if they’re not going to benefit, not exposing them to the side-effects associated with those treatments. There is huge reason to be optimistic about what is going to happen.’
The charity Breakthrough Breast Cancer said the research could ‘revolutionise’ treatment.
Head of research Dr Julia Wilson said: ‘In essence the entire patient journey could change. This is another important building block in our goal for women to receive tailor-made treatments specific to their particular type of breast cancer.’
Baroness Delyth Morgan, chief executive of Breast Cancer Campaign, said: ‘Being able to tailor treatments to the needs of individual patients is considered the holy grail for clinicians and this extensive study brings us another step further to that goal.’

Wednesday, April 11, 2012

Hackers 'can gain access to medical implants and endanger patients' lives'

It may sound like the plot of a modern thriller movie, but security researchers say many medical implants are vulnerable to cyber attacks that could endanger their users' lives.
An increasing number of patients are being fitted with devices such as pacemakers and insulin pumps to manage chronic conditions.
Vulnerable: Barnaby Jack shows how he can hack the insulin pump fixed inside a mannequin using a laptop and antenna
Vulnerable: Barnaby Jack shows how he can hack the insulin pump fixed inside a mannequin using a laptop and antenna
An expert has now warned hackers could gain remote control of such implants because they rely on unprotected wireless links to update them.
After gaining access to the device, a cyber criminal could then switch it off or tell it to deliver a dangerous dose of medicine to the patient, potentially killing them.
Researchers said although there hadn't been any known attacks to date, far more work is needed to protect implants from malicious actions.

 
Barnaby Jack, an analyst at security firm McAfee, has revealed how he was able to hijack a well-known make of insulin pump within two weeks by hacking its radio signals using a small antenna. He was also able to disable security alerts that warn the user something is awry.
He told the BBC: 'We can influence any pump within a 300ft range.
'We can make that pump dispense its entire 300 unit reservoir of insulin and we can do that without requiring its ID number.'
An ordinary insulin dose would be five to 10 units after a meal to regulate blood sugar. An entire cartridge would therefore spell deep trouble for the patient.
One problem medical firms face is that the devices can't be updated at present without being recalled, unlike laptops or mobiles that regularly receive security updates.
'These are computers that are just as exploitable as your PC or Mac, but they’re not looked at as often,' Mr Jack told Bloomberg last month.
'When you actually look at these devices, the security vulnerabilities are quite shocking.'
Wireless: Pacemakers, as seen in this X-ray, could be switched off if successfully hacked
Wireless: Pacemakers, as seen in this X-ray, could be switched off if successfully hacked
Mr Jack said medical companies had shown a complete lack of foresight into how vulnerable wireless medical devices could be.
However, the firm Medtronic, which produces one of the insulin pump models hacked by Mr Jack, said it was doing 'everything it can' to address security flaws.
'This is an evolution from having to think about security and safety as a healthcare company, and really about keeping people safe on our therapy, to this different question about keeping people safe around criminal or malicious intent,' Catherine Szyman, president of Medtronic's diabetes division, said.
Researchers from the University of Massachusetts have been working on improving the security of cardiac devices, since they discovered in 2008 that a defibrillator could be reset by a hacker to deliver a shock that might prove fatal.
Cybercriminals have yet to target medical implants, but researchers say this could happen in the near futureCybercriminals have yet to target medical implants, but researchers say this could happen in the near future
In August last year, Professor Kevin Fu revealed they had created a wearable 'shield' device that can emit a jamming signal when an active attacker establishes an unauthorised wireless link between a pacemaker and a remote terminal.
If all broadcasting radio 'noise' on the implant frequency is blocked by a jamming device, it prevents the doctor as well as an attacker from receiving the data signals.
The 'shield' allows doctors to access the data but stops passive eavesdroppers and active attackers.
While it doesn't jam all signals, Professor Fu said it could block a sophisticated adversary until they were within five metres of a victim's implant.
In the UK, the Medicines and Healthcare products Regulatory Authority (MHRA) said they had yet to receive any reports of medical implant hacks.
'We closely monitor the safety and performances of all medical devices and take action to ensure the safety of patients,' a spokesman said.