Treat with extreme caution

Homoeopathic medicine is founded on a bogus philosophy. Its continued use is a drain on NHS resource

Two years ago, a loose coalition of like-minded scientists wrote an open letter to chief executives of the National Health Service Trusts. The signatories simply stated that homoeopathy and other alternative therapies were unproven, and that the NHS should reserve its funds for treatments that had been shown to work. The letter marked an extraordinary downturn in the fortunes of homoeopathy in the UK over the following year, because the overwhelming majority of trusts either stopped sending patients to the four homoeopathic hospitals, or introduced measures to strictly limit referrals.

Consequently, the future of these hospitals is now in doubt. The Tunbridge Wells Homoeopathic Hospital is set to close next year and the Royal London Homoeopathic Hospital is likely to follow in its wake. Homoeo paths are now so worried about the collapse of their flagship hospitals that they are organising a march to deliver a petition to Downing Street on 22 June. Local campaign groups are being formed and patients are being urged to sign the petition.

Homoeopaths believe that the medical Establishment is crushing a valuable healing tradition that dates back more than two centuries and that still has much to offer patients. Homoeopaths are certainly passionate about the benefits of their treatment, but are their claims valid, or are they misguidedly promoting a bogus philosophy?

This is a question that I have been considering for the past two years, ever since I began co-authoring a book on the subject of alternative medicine with Professor Edzard Ernst. He was one of the signatories of the letter to the NHS trusts and is the world's first professor of complementary medicine. Before I present our conclusion, it is worth remembering why homoeo pathy has always existed beyond the borders of mainstream medicine.

Homoeopathy relies on two key principles, namely that like cures like, and that smaller doses deliver more powerful effects. In other words, if onions cause our eyes to stream, then a homoeopathic pill made from onion juice might be a potential cure for the eye irritation caused by hay fever. Crucially, the onion juice would need to be diluted repeatedly to produce the pill that can be administered to the patient, as homoeopaths believe that less is more.

Initially, this sounds attractive, and not dissimilar to the principle of vaccination, whereby a small amount of virus can be used to protect patients from viral infection. However, doctors use the principle of like cures like very selectively, whereas homoeopaths use it universally. Moreover, a vaccination always contains a measurable amount of active ingredient, whereas homoeopathic remedies are usually so dilute that they contain no active ingredient whatsoever.

A pill that contains no medicine is unlikely to be effective, but millions of patients swear by this treatment. From a scientific point of view, the obvious explanation is that any perceived benefit is purely a result of the placebo effect, because it is well established that any patient who believes in a remedy is likely to experience some improvement in their condition due to the psychological impact. Homoeopaths disagree, and claim that a "memory" of the homoeopathic ingredient has a profound physiological effect on the patient. So the key question is straightforward: is homoeopathy more than just a placebo treatment?

Fortunately, medical researchers have conducted more than 200 clinical trials to investigate the impact of homoeopathy on a whole range of conditions. Typically, one group of patients is given homoeopathic remedies and another group is given a known placebo, such as a sugar pill. Researchers then examine whether or not the homoeopathic group improves on average more than the placebo group. The overall conclusion from all this research is that homoeopathic remedies are indeed mere placebos.

In other words, their benefit is based on nothing more than wishful thinking. The latest and most definitive overview of the evidence was published in the Lancet in 2005 and was accompanied by an editorial entitled "The end of homoeopathy". It argued that ". . . doctors need to be bold and honest with their patients about homoeopathy's lack of benefit".

An unsound investment

However, even if homoeopathy is a placebo treatment, anybody working in health care will readily admit that the placebo effect can be a very powerful force for good. Therefore, it could be argued that homoeopaths should be allowed to flourish as they administer placebos that clearly appeal to patients. Despite the undoubted benefits of the placebo effect, however, there are numerous reasons why it is unjustifiable for the NHS to invest in homoeopathy.

First, it is important to recognise that money spent on homoeopathy means a lack of investment elsewhere in the NHS. It is estimated that the NHS spends £500m annually on alternative therapies, but instead of spending this money on unproven or disproven therapies it could be used to pay for 20,000 more nurses. Another way to appreciate the sum of money involved is to consider the recent refurbishment of the Royal Homoeopathic Hospital in London, which was completed in 2005 and cost £20m. The hospital is part of the University College London Hospitals NHS Foundation Trust, which contributed £10m to the refurbishment, even though it had to admit a deficit of £17.4m at the end of 2005. In other words, most of the overspend could have been avoided if the Trust had not spent so much money on refurbishing the spiritual home of homoeopathy.

Second, the placebo effect is real, but it can lull patients into a false sense of security by improving their sense of well-being without actually treating the underlying conditions. This might be all right for patients suffering from a cold or flu, which should clear up given time, but for more severe illnesses, homoeopathic treatment could lead to severe long-term problems. Because those who administer homoeopathic treatment are outside of conventional medicine and therefore largely unmonitored, it is impos sible to prove the damage caused by placebo. Never theless, there is plenty of anecdotal evidence to support this claim.

For example, in 2003 Professor Ernst was working with homoeopaths who were taking part in a study to see if they could treat asthma. Unknown to the professor or any of the other researchers, one of the homoeopaths had a brown spot on her arm, which was growing in size and changing in colour. Convinced that homoeopathy was genuinely effective, the homoeopath decided to treat it herself using her own remedies. Buoyed by the placebo effect, she continued her treatment for months, but the spot turned out to be a malignant melanoma. While she was still in the middle of treating asthma patients, the homoeopath died. Had she sought conventional treatment at an early stage, there would have been a 90 per cent chance that she would have survived for five years or more. By relying on homoeopathy, she had condemned herself to an inevitably early death.

The third problem is that anybody who is aware of the vast body of research and who still advises homoeopathy is misleading patients. In order to evoke the placebo effect, the patient has to be fooled into believing that homoeopathy is effective. In fact, bigger lies encourage bigger patient expectations and trigger bigger placebo effects, so exploiting the benefits of homoeopathy to the full would require homoeopaths to deliver the most fantastical justifications imaginable.

Over the past half-century, the trend has been towards a more open and honest relationship between doctor and patient, so homoeopaths who mislead patients flagrantly disregard ethical standards. Of course, many homoeopaths may be unaware of or may choose to disregard the vast body of scientific evidence against homoeo pathy, but arrogance and ignorance in health care are also unforgivable sins.

If it is justifiable for the manufacturers of homoeopathic remedies in effect to lie about the efficacy of their useless products in order to evoke a placebo benefit, then maybe the pharmaceutical companies could fairly argue that they ought to be allowed to sell sugar pills at high prices on the basis of the placebo effect as well. This would undermine the requirement for rigorous testing of drugs before they go on sale.

A fourth reason for spurning placebo-based medicines is that patients who use them for relatively mild conditions can later be led into dangerously inappropriate use of the same treatments. Imagine a patient with back pain who is referred to a homoeopath and who receives a moderate, short-term placebo effect. This might impress the patient, who then returns to the homoeopath for other advice. For example, it is known that homoeopaths offer alternatives to conventional vaccination - a 2002 survey of homoeopaths showed that only 3 per cent of them advised parents to give their baby the MMR vaccine. Hence, directing patients towards homoeo paths for back pain could encourage those patients not to have their children vaccinated against potentially dangerous diseases.

Killer cures

Such advice and treatment is irresponsible and dangerous. When I asked a young student to approach homoeopaths for advice on malaria prevention in 2006, ten out of ten homoeopaths were willing to sell their own remedies instead of telling the student to seek out expert advice and take the necessary drugs.

The student had explained that she would be spending ten weeks in West Africa; we had decided on this backstory because this region has the deadliest strain of malaria, which can kill within three days. Nevertheless, homoeopaths were willing to sell remedies that contained no active ingredient. Apparently, it was the memory of the ingredient that would protect the student, or, as one homoeopath put it: "The remedies should lower your susceptibility; because what they do is they make it so your energy - your living energy - doesn't have a kind of malaria-shaped hole in it. The malarial mosquitoes won't come along and fill that in. The remedies sort it out."

The homoeopathic industry likes to present itself as a caring, patient-centred alternative to conventional medicine, but in truth it offers disproven remedies and often makes scandalous and reckless claims. On World Aids Day 2007, the Society of Homoeopaths, which represents professional homoeopaths in the UK, organised an HIV/Aids symposium that promoted the outlandish ambitions of several speakers. For example, describing Harry van der Zee, editor of the International Journal for Classical Homoeo pathy, the society wrote: "Harry believes that, using the PC1 remedy, the Aids epidemic can be called to a halt, and that homoeopaths are the ones to do it."

There is one final reason for rejecting placebo-based medicines, perhaps the most important of all, which is that we do not actually need placebos to benefit from the placebo effect. A patient receiving proven treatments already receives the placebo effect, so to offer homoeopathy instead - which delivers only the placebo effect - would simply short-change the patient.

I do not expect that practising homoeopaths will accept any of my arguments above, because they are based on scientific evidence showing that homoeopathy is nothing more than a placebo. Even though this evidence is now indisputable, homoeopaths have, understandably, not shown any enthusiasm to acknowledge it.

For now, their campaign continues. Although it has not been updated for a while, the campaign website currently states that its petition has received only 382 signatures on paper, which means that there's a long way to go to reach the target of 250,000. But, of course, one of the central principles of homoeopathy is that less is more. Hence, in this case, a very small number of signatures may prove to be very effective. In fact, perhaps the Society of Homoeopaths should urge people to withdraw their names from the list, so that nobody at all signs the petition. Surely this would make it incredibly powerful and guaranteed to be effective.

"Trick or Treatment? Alternative Medicine on Trial" (Bantam Press, £16.99) by Simon Singh and Edzard Ernst is published on 21 April

Homoeopathy by numbers

3,000 registered homoeopaths in the UK

1 in 3 British people use alternative therapies such as homoeopathy

42% of GPs refer patients to homoeopaths

0 molecules of an active ingredient in a typical "30c" homoeopathic solution

$1m reward offered by James Randi for proof that homoeopathy works

This article first appeared in the 21 April 2008 issue of the New Statesman, Food crisis

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Are smart toys spying on children?

If you thought stepping on a Lego was bad, consider the new ways in which toys can hurt and harm families.

In January 1999, the president of Tiger Electronics, Roger Shiffman, was forced to issue a statement clearing the name of the company’s hottest new toy. “Furby is not a spy,” he announced to the waiting world.

Shiffman was speaking out after America’s National Security Agency (NSA) banned the toy from its premises. The ban was its response to a playground rumour that Furbies could be taught to speak, and therefore could record and repeat human speech. “The NSA did not do their homework,” said Shiffman at the time.

But if America’s security agencies are still in the habit of banning toys that can record, spy, and store private information, then the list of contraband items must be getting exceptionally long. Nearly 18 years after TE were forced to deny Furby’s secret agent credentials, EU and US consumer watchdogs are filing complaints about a number of WiFi and Bluetooth connected interactive toys, also known as smart toys, which have hit the shelves. Equipped with microphones and an internet connection, many have the power to invade both children’s and adults’ private lives.

***

“We wanted a smart toy that could learn and grow with a child,” says JP Benini, the co-founder of the CogniToys “Dino”, an interactive WiFi-enabled plastic dinosaur that can hold conversations with children and answer their questions. Benini and his team won the 2014 Watson Mobile Developer Challenge, allowing them to use the question-answering software IBM Watson to develop the Dino. As such, unlike the “interactive” toys of the Nineties and Noughties, Dino doesn’t simply reiterate a host of pre-recorded stock phrases, but has real, organic conversations. “We grew it from something that was like a Siri for kids to something that was more conversational in nature.”

In order for this to work, Dino has a speaker in one nostril and a microphone in the other, and once a child presses the button on his belly, everything they say is processed by the internet-connected toy. The audio files are turned into statistical data and transcripts, which are then anonymised and encrypted. Most of this data is, in Benini’s words, “tossed out”, but his company, Elemental Path, which owns CogniToys, do store statistical data about a child, which they call “Play Data”. “We keep pieces from the interaction, not the full interaction itself,” he tells me.

“Play Data” are things like a child’s favourite colour or sport, which are used to make a profile of the child. This data is then available for the company to view, use, and pass on to third parties, and for parents to see on a “Parental Panel”. For example, if a child tells Dino their favourite colour is “red”, their mother or father will be able to see this on their app, and Elemental Path will be able to use this information to, Benini says, “make a better toy”.

Currently, the company has no plans to use the data with any external marketers, though it is becoming more and more common for smart toys to store and sell data about how they are played with. “This isn’t meant to be just another monitoring device that's using the information that it gathers to sell it back to its user,” says Benini.

Sometimes, however, Elemental Path does save, store, and use the raw audio files of what a child has said to the toy. “If the Dino is asked a question that it doesn’t know, we take that question and separate it from the actual child that’s asking it and it goes into this giant bucket of unresolved questions and we can analyse that over time,” says Benini. It is worth noting, however, that Amazon reviews of the toy claim it is frequently unable to answer questions, meaning there is potentially an abundance of audio saved, rather than it being an occasional occurrence.

CogniToys have a relatively transparent Privacy Policy on their website, and it is clear that Benini has considered privacy at length. He admits that the company has been back and forth about how much data to store, originally offering parents the opportunity to see full transcripts of what their child had been saying, until many fed back that they found this “creepy”. Dino is not the first smart toy to be criticised in this way.

Hello Barbie is the world’s first interactive Barbie doll, and when it was released by Mattel in 2015, it was met with scorn by parents’ rights groups and privacy campaigners. Like Dino, the doll holds conversations with children and stores data about them which it passes back to the parents, and articles expressing concerns about the toy featured on CNN, the Guardian, and the New York Times. Despite Dino’s similarities, however, Benini’s toy received almost no negative attention, while Hello Barbie won the Campaign for a Commercial-Free Childhood’s prize for worst toy of the year 2015.

“We were lucky with that one,” he says, “Like the whole story of the early bird gets the worm but the second worm doesn’t get eaten. Coming second on all of this allowed us to be prepared to address the privacy concerns in greater depth.”

Nonetheless, Dino is in many ways essentially the same as Hello Barbie. Both toys allow companies and parents to spy on children’s private playtimes, and while the former might seem more troubling, the latter is not without its problems. A feature on the Parental Panel of the Dino also allows parents to see the exact wording of questions children have asked about certain difficult topics, such as sex or bullying. In many ways, this is the modern equivalent of a parent reading their child's diary. 

“Giving parents the opportunity to side-step their basic responsibility of talking to, engaging with, encouraging and reassuring their child is a terrifying glimpse into a society where plastic dinosaurs rule and humans are little more than machines providing the babies for the reptile robots to nurture,” says Renate Samson, the chief executive of privacy campaign group Big Brother Watch. “We are used to technology providing convenience in our lives to the detriment of our privacy, but allowing your child to be taught, consoled and even told to meditate by a WiFi connected talking dinosaur really is a step in the wrong direction.”

***

Toy companies and parents are one thing, however, and to many it might seem trivial for a child’s privacy to be comprised in this way. Yet many smart toys are also vulnerable to hackers, meaning security and privacy are under threat in a much more direct way. Ken Munro, of Pen Test Partners, is an ethical hacker who exposed security flaws in the interactive smart toy “My Friend Cayla” by making her say, among other things, “Calm down or I will kick the shit out of you.”

“We just thought ‘Wow’, the opportunity to get a talking doll to swear was too good,” he says. “It was the kid in me. But there were deeper concerns.”

Munro explains that any device could connect to the doll over Bluetooth, provided it was in range, as the set-up didn’t require a pin or password. He also found issues with the encryption processes used by the company. “You can say anything to a child through the doll because there's no security,” he says. “That means you've got a device that can potentially be used to groom a child and that's really creepy.”

Pen Test Partners tells companies about the flaws they find with their products in a process they call “responsible disclosure”. Most of the time, companies are grateful for the information, and work through ways to fix the problem. Munro feels that Vivid Toy Group, the company behind Cayla, did a “poor job” at fixing the issue. “All they did was put one more step in the process of getting it to swear for us.”

It is one thing for a hacker to speak to a child through a toy and another for them to hear them. Early this year, a hack on baby monitors ignited such concerns. But any toy with speech recognition that is connected to the internet is also vulnerable to being hacked. The data that is stored about how children play with smart toys is also under threat, as Fisher Price found out this year when a security company managed to obtain the names, ages, birthdays, and genders of children who had played with its smart toys. In 2015, VTech also admitted that five million of its customers had their data breached in a hack.

“The idea that your child shares their playtime with a device which could potentially be hacked, leaving your child’s inane or maybe intimate and revealing questions exposed is profoundly worrying,” says Samson. Today, the US Electronic Privacy Information Center (EPIC) said in a statement that smart toys “pose an imminent and immediate threat to the safety and security of children in the United States”. 

Munro says big brands are usually great at tackling these issues, but warns about smaller, cheaper brands who have less to lose than companies like Disney or Fisher Price. “I’m not saying they get it right but if someone does find a problem they’ve got a huge incentive to get it right subsequently,” he says of larger companies. Thankfully, Munro says that he found Dino to be secure. “I would be happy for my kids to play with it,” he says. “We did find a couple of bugs but we had a chat with them and they’re a good bunch. They aren’t perfect but I think they’ve done a hell of a lot of a better job than some other smart toy vendors.”

Benini appears alert to security and the credibility it gives his company. “We took the security very, very seriously,” he says. “We were still building our systems whilst these horror stories were coming about so I already set pipelines and parameters in place. With a lot of devices out there it seems that security takes a backseat to the idea, which is really unfortunate when you’re inviting these devices into your home.”

As well as being wary of smaller brands, Munro advises that parents should look out for Bluetooth toys without a secure pairing process (ie. any device can pair with the toy if near enough), and to think twice about which toys you connect to your WiFi. He also advises to use unique passwords for toys and their corresponding apps.

“You might think ‘It's just a toy, so I can use the same password I put in everything else’ – dog’s name, football club, whatever – but actually if that ever got hacked you’d end up getting all your accounts that use that same password hacked,” he says.

Despite his security advice, Munro describes himself as “on the fence” about internet-connected smart toys as a whole. “Most internet of things devices can be hacked in one way or another,” he says. “I would urge caution.”

***

Is all of this legal? Companies might not be doing enough ethically to protect the privacy of children, but are they acting responsibly within the confines of the law?

Benini explains that Dino complies with the United States Children's Online Privacy Protection Act (COPPA) of which there is no real equivalent in the UK. COPPA says that companies must have parental permission to collect personal information over the internet about children under 13 years of age. “We’ve tried to go above and beyond the original layout of COPPA,” says Benini, when describing CogniToys transparent privacy documents. Parents give their consent for Elemental Path to collect their children’s data when they download the app that pairs with the toy.

Dino bears a striking similarity to Amazon Echo and Google Home, smart speakers that listen out for commands and questions in your home. Everything that is said to Amazon Echo is recorded and sent to the cloud, and an investigation by the Guardian earlier this year discovered that this does not comply with COPPA. We are therefore now in a strange position whereby many internet of things home devices are legally considered a threat to a child’s privacy, whereas toys with the same capabilities are not. This is an issue because many parents may not actually be aware that they are handing over their children’s data when installing a new toy.

As of today, EU consumer rights groups are also launching complaints against certain smart toys, claiming they breach the EU Unfair Contract Terms Directive and the EU Data Protection Directive, as well as potentially the Toy Safety Directive. Though smart toys may be better regulated in Europe, there are no signs that the problem is being tackled in the UK. 

At a time when the UK government are implementing unprecedented measures to survey its citizens on the internet and Jeremy Hunt wants companies to scour teens’ phones for sexts, it seems unlikely that any legislation will be enacted that protects children’s privacy from being violated by toy companies. Indeed, many internet of things companies – including Elemental Path – admit they will hand over your data to government and law enforcement officials when asked.

***

As smart toys develop, the threat they pose to children only becomes greater. The inclusion of sensors and cameras means even more data can be collected about children, and their privacy can and will be compromised in worrying ways.

Companies, hackers, and even parents are denying children their individual right to privacy and private play. “Children need to feel that they can play in their own place,” says Samson. It is worrying to set a precedent where children get used to surveillance early on. All of this is to say nothing of the educational problems of owning a toy that will tell you (rather than teach you) how to spell “space” and figure out “5+8”.

In a 1999 episode of The Simpsons, “Grift of the Magi”, a toy company takes over Springfield Elementary and spies on children in order to create the perfect toy, Funzo. It is designed to destroy all other toys, just in time for Christmas. Many at the time criticised the plot for being absurd. Like the show's prediction of President Trump, however, it seems that we are living in a world where satire slowly becomes reality.

Amelia Tait is a technology and digital culture writer at the New Statesman.