Archive for July, 2010

“Without Great Teachers, Nothing Else Matters”

Saturday, July 31st, 2010

I could watch these video clips (also here) all day. You may have learned about Doug Lemov from this NY Times Magazine article. The quote “without great teachers, nothing else matters” is from the website of the organization (Uncommon Schools) that Lemov founded. The clips show techniques he has isolated that great teachers use in elementary school.

My research is fundamentally about deficiency diseases. I find things present in Stone Age life but absent now whose absence causes problems. Sometimes I work backwards (from present to past): why am I not sleeping well? This turned out to have a Stone-Age-related answer. Sometimes I work forwards: I study something present in Stone-Age life but not now and learn it makes things better: standing (better sleep), morning faces (better mood).
So I know a lot about deficiency diseases. One curious thing about them is the opportunity they present. Without scurvy, we wouldn’t have discovered Vitamin C. Once we’ve discovered Vitamin C, we can figure out the optimal amount, possibly leaving us better off than before scurvy became a problem.

This is what I thought as I watched these clips. Formal education is unnatural. No wonder it’s so hard. These clips, however, show that with considerable understanding of psychology you can solve the problems it presents. And perhaps leave us better off than before formal schooling began.

A Month of Omega-6

Friday, July 30th, 2010

Susan Allport, having written The Queen of Fats, unsurprisingly eats a diet high in omega-3 and low in omega-6. For one month, however, she ate a diet with more omega-6 and less omega-3 and wrote about it– like Supersize Me, except far more realistic.

O magazine commissioned a story about it but didn’t run it. “My weight gain was only 0.5 pounds and they thought their readers wouldn’t see the importance of that,” says Allport. Her draft is here. There were three striking changes over the month: the omega-6/omega-3 ratio in her blood doubled (implying that this ratio is controlled by diet rather than by stored fat); her belly fat noticeably increased; and the elasticity of her arteries decreased by 20%. This supports Allport’s belief (and mine) that omega-6 is dangerous when consumed in large amounts, as it is if you eat a lot of food cooked in vegetable oil.

The American Heart Association recommends that Americans eat more omega-6. The justification of this recommendation says nothing about the Israeli Paradox, which to me is the best reason to avoid a diet high in omega-6. Allport’s experience is another reason.
Allport is also the author of Explorers of the Black Box, about neuroscience research.

Premier of Canadian Province Gets Involved in MS Research

Thursday, July 29th, 2010

How strange:

In a striking departure from his political counterparts across the country, Saskatchewan Premier Brad Wall says his government will finance clinical trials of liberation therapy, a contentious experimental procedure for multiple sclerosis patients.

Of course, the heads of provinces don’t usually get involved in research at this level of detail. However, “Saskatchewan has the highest rate of MS in the country,” says the article.

In Part 5 of The Story of Science (BBC), Michael Mosley, the presenter, said that for hundreds of years medical students were shown a human liver and told it had three lobes. They were told that because that’s what Galen had said. However, human livers do not have three lobes. As the students could see. Mosely is a doctor. “When I was a medical student,” said Mosley, “there was tremendous pressure to conform.” MS researchers have said for a long time that MS is an autoimmune disease. Could this have been as misleading as Galen’s description of the liver?
Thanks to Anne Weiss.

“No One’s Going to Care About You Like You Do”

Wednesday, July 28th, 2010

At the end of a BookTV interview of Harry Markopolos, the guy who discovered Madoff’s Ponzi scheme, Markopolos says

No one’s going to care about you like [= as much as] you do.

He meant this as financial advice: Make up your own mind about how to invest your money. Don’t assume someone else has done the necessary thinking.

My self-experimentation led me to the same conclusion, as I wrote here. My self-experimentation uncovered helpful treatments (e.g., how to sleep better) that the experts (in this case, sleep researchers) had missed. I theorized that this was partly because I cared more than they did about the quality of my sleep. I had “the motivation of a person with the problem”; they didn’t.

Assorted Links

Wednesday, July 28th, 2010

Thanks to Peter Couvares and Casey Manion.

Omega-3 and Dental Health (revisited)

Tuesday, July 27th, 2010

A few years ago I learned that flaxseed oil improved my gums and other people’s — especially Tyler Cowen’s. A few months ago I went to Beijing for two months. Toward the end of the visit my gums would bleed when I’d use a toothpick. Yet I was drinking 3 tablespoons of flaxseed oil every day, just like in Berkeley. (more…)

The Economics of Medical Hypotheses and Its Successor (part 2 of 2)

Monday, July 26th, 2010

A successor to Medical Hypotheses, called Hypotheses in the Life Sciences, will be edited by William Bains and published by Buckingham University Press (BUP).

ROBERTS Does BUP hope to eventually make money from the successor journal? Or do they merely hope the subsidy required will decrease with time?

WILLIAM BAINS BUP is a small operation, and does not have the resources to subsidize Hypotheses in the Life Sciences beyond its start-up stage, so we hope to make enough money to break even fairly soon. Ultimately the aim is to be profitable. I for one am determined to put scientific quality first, and I have emphasized to BUP that I only want the journal to grow (and hence generate more revenue) when the quality of submissions allows it.

ROBERTS What led BUP to decide to publish the new journal?

BAINS I think a combination of similarity in philosophy and being in the right place at the right time. They thought it was an exciting project which would both raise their profile (in a good way) and make them money. Buckingham University is the UK’s only private university, and as such takes a heterodox, even iconoclastic view towards what the academic establishment says is writ in stone. The Chancellor has a robust approach to academic and individual freedom. So a journal trying to do something rather new, enabling those with good ideas but little power to be heard, fitted with their approach.  For me, an added advantage is that I deal directly with the man at the top. There are no intermediate layers of management to take decisions about the journal, and we discuss everything from philosophy to web page design. This is the sort of immediacy you do not get with a big publisher.

Part 1 (Bruce Charlton). Bioscience Hypotheses, a similar journal founded by Bains.

Learning From “Pseudoscience”

Sunday, July 25th, 2010

The second episode of BBC’s The Story of Science is about chemistry. It shows unusual sophistication by emphasizing that early chemists built on the alchemists. The alchemists invented techniques and equipment later used by “real” chemists such as Joseph Priestly — the ones who reached conclusions we still believe. Not everyone understands that some “pseudoscience”, such as alchemy, is valuable.

A few years after I became an assistant professor, I realized the key thing a scientist needs is an excuse. Not a prediction. Not a theory. Not a concept. Not a hunch. Not a method. Just an excuse — an excuse to do something, which in my case meant an excuse to do a rat experiment. If you do something, you are likely to learn something, even if your reason for action was silly. The alchemists wanted gold so they did something. Fine. Gold was their excuse. Their activities produced useful knowledge, even though those activities were motivated by beliefs we now think silly. I’d like to think none of my self-experimentation was based on silly ideas but, silly or not, it often paid off in unexpected ways. At one point I tested the idea that standing more would cause weight loss. Even as I was doing it I thought the premise highly unlikely. Yet this led me to discover that standing a lot improved my sleep.

Richard Feynman, in his famous “cargo-cult science” speech, failed to understand that “real” science can build on “pseudoscience”:

Another example is how to treat criminals. We obviously have made no progress–lots of theory, but no progress–in decreasing the amount of crime by the method that we use to handle criminals. Yet these things are said to be scientific. We study them. And I think ordinary people with commonsense ideas are intimidated by this pseudoscience.

Absence of obvious progress (such as no decrease in crime) doesn’t mean something is worthless. Bizarre ideas or unsupported ideas (“lots of theory but no progress”) doesn’t mean something is worthless. What’s worthless, in terms of science, is not paying attention to reality. Not caring about how the world actually is. The cargo cults Feynman mentioned weren’t worthless. They tested their beliefs. They found out the planes didn’t land. Fine. It wasn’t pseudoscience, it was just early science, where the reasons for doing stuff now appear ridiculous. Of course the alchemists had beliefs we now think ridiculous. How could they not have?

Science is fundamentally on the side of the weak, since it offers hope of improvement. The powerful not only can afford to ignore reality they would like to, because it might be inconvenient. So they do so as much as possible. When I’ve heard “the debate is over” (= it’s now time to ignore reality) it’s always turned out that the person saying this (e.g., Al Gore, mainstream journalists) was powerful or credulous.

It’s not bad that some people ignore reality. We need people like that. I think of the body: parts of it (e.g., sensory systems) are very sensitive to reality, parts of it (e.g., bones) are not. We need both. When leaders ignore reality is when trouble begins.

What’s “Natural” Sleep? (more)

Saturday, July 24th, 2010

This morning I woke up feeling very refreshed and in a good mood. I’d slept about six hours. I’d fallen asleep within seconds of turning off my bedside light. This is what usually happens. I almost always sleep this well. Yet I don’t avoid caffeine during the day (I drink a lot of tea) nor artificial light at night (I do avoid fluorescent light at night). For a large chunk of my life my sleep was much worse. I never woke up feeling well-rested. I often woke up quite tired but unable to fall back asleep. A few hours later I’d fall back asleep and sleep a few more hours, much like the biphasic sleep called segmented sleep. Which is more natural — my current sleep or segmented sleep? As I blogged, several scientists have said that segmented sleep is more natural. (more…)

The Economics of Medical Hypotheses and Its Successor (part 1 of 2)

Friday, July 23rd, 2010

A successor to Medical Hypotheses, titled Hypotheses in the Life Sciences, will soon be published. I asked Bruce Charlton and William Bains, the founder of the new journal, about the economics of the situation.

ROBERTS Did Medical Hypotheses make money for Elsevier? How much did it cost to run per year (leaving aside time contributed by you and the editorial board)? How much of that did Elsevier pay?

BRUCE CHARLTON  Medical Hypotheses did for sure make money for Elsevier – but I was never allowed to see the accounts. (more…)