Showing posts with label pseudoscience. Show all posts
Showing posts with label pseudoscience. Show all posts

Wednesday, August 15, 2007

The future's not ours to see, que Sera Sera

As a student in India, I found that critical thinking was largely lacking in science classrooms. Even the examinations seemed to test ones ability to memorize rather than indulgence in critical thinking which is at the very core of scientific thinking. It is no mystery to me then, that the two scientists I worked for in India were highly superstitious. One of them would put a red tilak on the paper mail that contained the manuscript about to be delivered for review before publication in a science journal. The other scientist I worked for was well traveled and even did a stint in research labs in the UK. But all the training in scientific thought did not shake her beliefs in her spiritually advanced Guru who could appear in two places at one time.

If this is the state of the scientific thinkers in India then what can one expect from the scientifically ignorant masses? It is no wonder that astrology is so popular in India. The idea that one can predict someone’s future based on the position of the planets in the solar system does not sound ludicrous to a (ridiculously) large number of people. It can be hard to regard astrology as hogwash when you grow up in a society where it is not uncommon to make major life decisions based on astrological charts. Marriages are fixed depending on the position of Saturn. Cars are purchased on the most auspicious days as determined by planetary alignment. A streak of bad luck can be fixed by wearing prescription precious stone (rings) in an effort to woo the planets in your favor or to ward off the cosmic bad vibes.

As with most superstitious beliefs, the faith in astrology is set through personal anecdotes. Once the superstitious beliefs are set in through confirmation bias it is hard to convince the person otherwise. No amount of experimental or statistical evidence that debunks astrology will challenge a believer’s set notion. A handy personal anecdote will void the need for questions or doubt. Questions such as, “how does astrology work?” become irrelevant. It has already been strongly instilled in the minds of the believers that it does not pay to have doubts. Blind faith is regarded as a virtue. The flaw lies in asking questions. So a person who sets his/her beliefs through rational thinking is thought to be close minded (the irony!) to things which have proved their efficacy through personal anecdotes rather than evidence based methodology.

Dawkins butts heads with astrology in his TV series called “the enemies of reason”. He chats with an astrologer who makes a living by publishing horoscopes in a newspaper. Dawkins suggests a simple experiment to test the veracity of astrological predictions. The experiment would be to cut out any one horoscope from a week old newspaper. Tell each individual (irrespective of their sun-sign) that the predictions apply to their sun-sign and then ask them how accurately it predicts what happened to them in the last week. Then calculate the accuracy of the prediction. The astrologer flat out refused to participate in the experiment.

Here is a short video clip of “The enemies of reason”. You can also watch the entire episode here.

Wednesday, August 08, 2007

Go Dawkins!

Richard Dawkins is an evolutionary biologist and one of the most prominent pro-science voices. He has authored several eloquently written books like “The selfish gene” and “The blind watchmaker”. I only wish more people would read Dawkins and Sagan instead of Crichton and Cook.

In his latest venture, Dawkins is making a series called ‘The enemies of Reason’ which is to be aired on TV on 13 August, 2007. In this series, Dawkins takes on practices such as astrology, tarot, psychic readings and the topic we recently discussed, homeopathy. I quote from the Sunday Times review on Dawkins’ series:


As Dawkins says: “There might be bad scientists, but that does not mean the methodology of science is bad.” For him the acid test is forever and always: “Test it!” This is a principle totally lacking, he charges, at the Royal London Homeopathic hospital, recently refurbished to the tune of £20m, including £10m from the cash-strapped NHS, and with a plaque certifying the endorsement of the Prince of Wales. (His title for episode two of The Enemies of Reason is The Irrational Health Service.)


Meanwhile it is no secret that there is a severe funding crisis in biomedical science research. Currently in the US, eight out of ten quality research grant application are going unfunded.


What is undisputed is that homeopathy derived from an early misunderstanding of the principle behind vaccination: that like cures like. But actually a real vaccine stimulates the body’s own immune system to fight the disease. What makes homeopathy so truly absurd in Dawkins’s inexorable logic is the idea that a substance becomes more powerful the more it is diluted. The idea, widely believed though totally unproven, is that water retains a “memory” of the molecule, though if it did he points out – as the people of Gloucester might nowadays bear in mind – it would also “remember” the salt, mud and urine it once contained. He cites the statistical probability that “one molecule in every litre of water drunk once passed through the bladder of Oliver Cromwell”. Hardly reassuring for royalists.

“I say to doctors who use homeopathy: if you can identify this you’d have discovered a whole new force in physics. Either there is no effect, in which case you shouldn’t be charging people money, or there is an effect, in which case you should prove it and win the Nobel prize.”

The fact that homeopathic doctors and patients do claim there is a benefit he puts down to the human body’s power to restore itself when given the psychological boost of someone else’s concentrated concern and attention: the average half hour to an hour, rather than the typical eight-minute NHS GP consultation. “There was a time when old-fash-ioned family doctors used to hand out placebos but now they aren’t allowed to because it’s against medical ethics. Now it’s only the homeopaths who are allowed to benefit from the placebo effect.

“Homeopathy started out about 200 years ago at a time when conventional medicine was considerably more dangerous. At least they weren’t applying leeches.” Dawkins insists that phenomena including religion, myths, superstition and science need to be seen in their historical context. He quotes the science fiction author Arthur C Clarke’s Third Law, “any significantly advanced technology is indistinguishable from magic”.

“But you can’t simply reverse that and say that because it calls itself magic now it must be future science.”


The article in the New York times gives a good overview on what the show is about and if you won’t be able to catch the show do read the article because it touches on most of the topics that will be covered in the show.

I am happy that finally such initiatives are taking place and being broadcast on national television…albeit on Channel 4.

Thursday, August 02, 2007

The sugar pill that kills

In our quest for finding remedies for diseases, we have acquired a deep knowledge of many of the diseases. Even though there are still a number of diseases that we cannot clearly understand or treat, we have made an incredible amount of progress. On our way to these discoveries, we have also tried out therapies which were designed out of limited knowledge and ignorance about the inner workings of the human body. One such treatment was designed by a German man named Samuel Hahnemann (1755 – 1843). Now we are talking about a time when the cures were worse than the disease. It was a common practice to use leeches to treat everything from fever to menopause.

The way that menstruation was seen during the 1700s was as a way of the body to get rid of impurities. So when menstruation ceased during menopause, what was thought to happen was that the blood remained within the body, clotting and stagnating ... The logical solution was the application of leeches — to a woman's genitalia, to her back, or to the nape of her neck, to try and remove this excess blood. — Dr Marilys Guillemin
Ouch! The good old days seem not so good anymore.

Okay so if you were a woman from the 18th century your options were (a) get a blood sucking leech stuck on your crotch or (b) eat two sugar pills (or whatever form they sold their sugar pills then) a day. I am sure that the woman without a leech stuck upon her crotch reported that she felt healthier than her leech therapy availing counterpart. So it wasn’t a surprise that homeopathic treatments became immensely popular.

Hahnemann came up with treatments based on the “laws of the similar”. It is something akin to ‘it takes a thorn to remove a thorn’. He came up with the idea that if you give the patient an extremely small amount of the substance that is causing the disease then you will get better. So if you were suffering from malaria and you go to the homeopath, s/he would give you an extremely diluted (no not plasmodium!) 18th century version of the causative agent of malaria. By extremely dilute, I mean that the substance is diluted 1,000,000,000,000,000,000,000,000,000,000 times. In other words pure water.

Some of you might say that nobody with a sound mind would treat severe diseases like cancer or malaria with homeopathic medicine. From my personal experience, I know that people don’t always make the right call given the choice between Western medicine and herbal (no side effects) treatments. When I was about six years old, I got malaria and my father decided that I should take homeopathic treatment for the fever. I ended up with malaria so severe that I had to be admitted to a hospital for several days. Thankfully I was able to recover completely after I was taken to a proper doctor. But even so my father still gets homeopathic prescriptions for many of his illnesses.

When people resort to homeopathic medicines for conditions that are chronic or not treatable by Western medicine I deem it the same as praying. Although the medication does not make the patient better it also does not make the condition worse. However, there are also people who rely solely on homeopathic remedies and succumb to the disease when they could’ve made a recovery with allopathic treatment. I knew one such woman, who lived in my neighborhood and died of jaundice because she decided to take the homeopathy pills (solely) instead of allopathic medicine.

This is one of the many examples of the gullibility of the masses that blindly follow arcane ideologies. People don’t bother to assess the authenticity of the treatment that they choose. If it is popular it must work. The quack doctors who practice this stuff are licensed by government institutions giving B.H.M.S. and D.H.M.S. degrees to sell sugar pills to the sick that are in need of some real medicine. It is no wonder that homeopathy is not regarded as the quack medicine that it really is.

Many of you might even know people who swear by the benefits of homeopathic treatments…people who have recovered by taking homeopathic pills where allopathic treatments failed. These folks have simply experienced a placebo effect or have recovered as a result of the natural healing process of the body. Like they say, “If you take medicine to cure a cold it would take a week and if you don’t take medicine it will take seven days.” Our body is a complex system that has evolved with an arsenal of defense mechanisms to combat the myriad of bugs on its own. Most of the time, we are successful in warding off these menacing diseases without any medication. The amount of recovery time varies and sometimes people take homeopathic medicines after an initial round of allopathic medicine. The allopathic medicine can reduce the burden of pathogens and give the body a chance to recuperate and sometimes the recovery time is long. So although the relief was primarily due to the allopathic medicine, since the patient’s full recovery happens while taking the homeopathic follow-up treatment, the patient’s belief in homeopathic medicine is re-iterated.

Some people in developing countries also lend credibility to homeopathy because of its popularity in the West. This kind of thinking comes from the common misconception that the Western world is made up of (scientifically) progressive thinkers. Even though most of the cutting edge research comes from developed countries, the majority of the Western population is superstitious and largely ignorant about science.

The popularity of homeopathic medicine is such that it is accepted as a branch of major hospitals (affiliated with research centers). The problem with this is that its association with research hospitals is giving it undue credibility. Unlike the extensive research that backs all the allopathic drugs before they hit the market, most of the homeopathic medicines have not even been tested, partly because it is impossible to test something that doesn’t even exist in the final prescription as a result of the incredible dilutions. The few studies that claim to test homeopathic medicine do so without proper controls, statistics or scientific methodology or protocols. Batra hospital and research center is one such hospital in New Delhi that offers alternative medicine in addition to allopathic treatments. Here are some of the quotes from their website that advertises the benefits of homeopathic treatment.

Homoeopathy: Magic of minimum dose:
Homoeopathy has a unique approach for preparation of drugs in which the end result will contain only the ‘dynamic curative power’ of drug substance, devoid of any original crude substance. By a special mode of preparation called ‘potentization’, over 2500 homeopathic medicines are prepared from sources such as vegetables, animals, minerals, chemicals, etc. Hence homeopathic remedies with its ultra minute doses are non-toxic, absolutely harmless and bring about SAFE CURE.


Of course it is harmless, you are prescribing water!

Homoeopathy offers wonder treatment for Viral infections:
Viral infections such as common cold, influenza, measles, Chickenpox, mumps, viral hepatitis (jaundice), viral meningitis etc. are very well treated with homoeopathy.


Now this is where it gets scary. If they were selling drugs to treat common cold it would be nothing more than fraud. But they are making false claims about curing diseases that can be fatal if left untreated. They are murdering people.

So in a nutshell, homeopathy is a large scale fraud operation that needs to be thwarted by educating people and not associating such quack therapies with hospitals and research centers. The government needs to take an active role in condemning such medical malpractices instead of certifying these mass-murdering witch-doctors.

If you are interested in reading more about why homeopathy is quack medicine check out this article called Homeopathy: The ultimate fake by Stephen Barett M.D.

If you would rather watch a video then check out “Scams, Sasquatch, and the Supernatural” by Brian Brushwood

(Also crossposted at my new blog for science writing)