Category: Health
What’s up with this, Pete?
A diesel-powered Pete’s Frootique truck idles unattended on Doyle Street in Halifax Saturday morning, needlessly spilling volatile organic compounds into the crisp spring air.
Big Mac v. salad – feedback (updated)
Contrarian reader Ken Clare thinks Contrarian’s standards slipped with our post of a chart comparing US food subsidies:
Edward Tufte, the “Galileo of Graphics” you introduced us to back in June, refers to images like these as “chartjunk.”
I haven’t taken the time to measure the images you copied (from a committee of physicians who may have had a passing relationship with math sometime in their pasts), but the subsidies pyramid eyeballs closer to a 100-to-1 ratio than the 75-to-25 ratio it is labeled.
Update: A Diligent Reader award goes to Contrarian’s insomniac friend Alistair Watt, who spent time with a ruler and a spreadsheet before concluding that the front faces of the pyramid graphs were a nearly perfect match for the data they purported to represent, but their transformation into three-dimensional pyramids distorted the data severely.
In other words, had this been presented as a column chart or a pie chart, it would have been reasonable. However, when I laboriously calculated the volumes implied by each subsection, the results were dramatically different.
Why a [U.S.] Big Mac costs less than a salad

This comparison, from the Physicians Committee for Responsible Medicine, is, of course, based on U.S. farm subsidies and U.S. dietary guidelines. Any data geeks out there want to take a stab at Canadian pyramids?
Can Down syndrome cure cancer?
This winter, Contrarian hosted an interesting discussion about whether Down syndrome needs a cure. Now reader Denis Falvy offers an intriguing footnote. It seems that people with Down syndrome rarely get tumors.
Recent research at Children’s Hospital in Boston, reported in the journal Nature, suggests that a gene (gene 231) on the extra chromosome (chromosome 21) carried by people with DS may inhibit cancer by blocking the activity of a protein tumors need to grow. Money quote:
The gene suppresses the growth of new blood vessels that cancers need by blocking the activity of the protein calcineurin, suggesting a new target for future cancer drugs. The investigators… add that chromosome 21 might possess four or five anti-angiogenesis genes.
Homeopathic overdose – rebuttal
Contrarian would not have thought it possible for a defense of quackery to set me chuckling and nodding my head, but my old pal Warren Reed has done it. [Previous installments here and here.] Knowing that the best defense is a good offense, Reed began by catching me in the act of scientific error:
One of the few things I remember from Nat. Sci. 3 is Avogadro’s Number — 6.023 x 10**23. So it isn’t roughly 10**23 as you state — it’s actually 6 times that. Six is called The Republican Constant – any Republican can stretch the truth by a factor of six without raising an eyebrow on Fox News. Journalists often get the same exemption.
But we don’t read Contrarian just for the science. More puzzling is the notion that a group of pub-crawling Brits is claiming to know what constitutes “proper medical assistance.” Of the reasons for healing—the passage of time, the placebo effect, natural defenses—”proper medical assistance” is on the list, but is an evanescent concept at best. It depends on many of the same principles for success as Homeopathy. Take two aspirin and call me in the morning.
More after the jump.
Homeopathic overdose – (cont.)
Contrarian reader Andrew Bourke points us to this trenchant sketch on the plausibility of homeopathy from the British comedy duo Mitchell and Webb:
UK skeptics plan mass homeopathic overdose
A British group calling itself 10-23* will stage a mass self-inflicted overdose of homeopathic remedies to protest the Boots pharmacy chain’s continued sale of the worthless** nostrums. At 10:23 a.m., January 30, 300 protesters will down a whole bottle of homeopathic pills each. The joke is that homeopathic mixtures have been diluted so many times, they no longer contain any of the original putative active ingredient.
From an open letter to the Boots chain:
The majority of people do not have the time or inclination to check whether the scientific literature supports the claims of efficacy made by products such as homeopathy. We trust brands such as Boots to check the facts for us, to provide sound medical advice that is in our interest and supply only those products with a demonstrable medical benefit.
We don’t expect to find products on the shelf at our local pharmacy which do not work.
Not only are these products ineffective, they can also be dangerous. Patients may delay seeking proper medical assistance because they believe homeopathy can treat their condition. Until recently, the Boots website even went so far as to tell patients that “after taking a homeopathic medicine your symptoms may become slightly worse,” and that this is “a sign that the body’s natural energies have started to counteract the illness”. Advice such as this directly encourages patients to wait before seeking real medical attention, even when their condition deteriorates.
Contrarian has long been astounded that regulatory authorities permit the sale of so-called remedies containing no active ingredients. Homeopathy takes snake oil salesmanship to a new level of fraudulence. The 10-23 website offers a good deconstruction of the theory underlying this persistent quackery.
* The group’s name derives from Avogadro’s constant, roughly 10 to the 23rd power, which, broadly speaking, places an upper limit on the number of molecules in a given volume of liquid or gas. Successive dilutions used in the preparation of homeopathic elixirs reduce the amount of the original ingredient beyond this number, with the result that not a single molecule remains. What’s left in the bottle is literally sugar water.
** In 2005, the respected British journal The Lancet carried out an exhaustive meta-analysis of all reported studies of homeopathic treatments and concluded that any apparent benefits were attributable to the placebo effect. [Free, but registration required.]
Hat tip: C. C.
NY Times picks up our Down syndrome thread
Motherlode, a New York Times blog on parenting, has picked up on Contrarian’s discussion about potential treatments for the intellectual impairment associated with Down syndrome — and touched off quite a debate of it its own.
Our own discussion began with L’Arche Cape Breton Community Leader Jenn Power’s disquiet at the assumption that Down syndrome constitutes a disease in need of curing. Jenn, who is both the adopted mother of identical twins with Down Syndrome and — disclosure — my daughter-in-law, spoke eloquently of Down traits that don’t need fixing:
[I]ncredible smiles, overflowing affection, stubbornness, great sense of humour, cute toes, love for orange pop and Rita MacNeil, endless capacity to forgive… the list goes on and on. I am not sure I can articulate why, but I find this article both upsetting (lump in my throat and eyes welled with tears right now) and disturbing. Why does everything need a “cure?”
The Times quoted at length from Jenn’s subsequent, more detailed Contrarian post, and from Stanford University researcher Dr. Ahmad Salehi’s thoughtful response here as well. Motherlode’s thread on the subject has now attracted more than 100 comments. Several are thoughtful and constructive, but a shocking number come from people quick to condemn Jenn as “selfish” or “patronizing” for not jumping at the chance to chemically enhance her sons’ cognitive skills.
Many Contrarian readers are familiar enough with Jenn to know her life is the antithesis of selfishness. As I wrote in my own comment on Motherlode:
As the leader of this extraordinary [L'Arche] community, Jenn manages an incredible range of human emotions, trials, joys, and tribulations, along with the myriad practical details required to manage any large group of diverse people. She does this with enormous tact, kindness, generosity, wisdom, humor, firmness, practicality, and love. And immense hard work.
From this I conclude that, despite decades of progress integrating developmentally challenged citizens into society, we have a long way to go in overcoming the kneejerk tendency to view people like my grandsons as less good and less valuable than the rest of us. That’s our loss as much as it is theirs.
In a separate post aimed at New York Times readers, I will include links to all our Down syndrome posts, and to several short videos featuring the extraordinary folks at L’Arche Cape Breton, including my esteemed two grandsons, Josh and Jacob.




