April 22, 2014

6:56 PM | Polar Opposites? The Social Construction of Bulimia and Anorexia Nervosa
Some might argue that bulimia nervosa is more “hidden” than anorexia nervosa — it is not always obvious that someone is suffering from bulimia (though, I would argue, it is not always obvious that someone is suffering from any eating disorder). Even when it is “discovered,” BN is often placed in opposition with AN — as if the two were polar opposites. Indeed, attempts to define a phenotype (a set of observable traits or characteristics) for AN and BN tend to […]

Burns, M. (2004). Eating Like an Ox: Femininity and Dualistic Constructions of Bulimia and Anorexia, Feminism & Psychology, 14 (2) 269-295. DOI:


April 20, 2014

4:27 AM | In Praise Of P=NP Proofs
Why they can be important Advertising source Joe Bloggs is not a computer scientist, at least not one that we know. As noted by Wikipedia, Joe Bloggs is a “placeholder name” like “John Doe” or “Jane Roe” in the US, or “Ashok Kumar” in India. Sometimes real people have or acquire the placeholder names: Ashok […]

April 19, 2014

4:46 AM | Energy Expenditure (Calories Burned) in Anorexia Nervosa Patients
How many calories do patients with anorexia nervosa need to eat to gain a kilo (2.2 lbs)? It seems like a simple question and one that we should have figured out a long time ago, given the importance (err, necessity) of refeeding and weight restoration in recovery from anorexia nervosa. Unfortunately, research in this area has often led to contradictory results (see Salisbury et al., 1995 and de Zwaan et al., 2002 for reviews). Fortunately, a paper by Stephan Zipfel and colleagues […]

Zipfel S, Mack I, Baur LA, Hebebrand J, Touyz S, Herzog W, Abraham S, Davies PS & Russell J (2013). Impact of exercise on energy metabolism in anorexia nervosa., Journal of Eating Disorders, 1 (1) 37. PMID:


April 17, 2014

4:45 AM | The More Variables, the Better?
Ideas from algebraic geometry and arithmetic complexity Hyman Bass is a professor of both mathematics and mathematics education at the University of Michigan, after a long and storied career at Columbia University. He was one of the first generation of mathematicians to investigate K-theory, and gave what is now the recognized definition of the first […]

April 15, 2014

2:51 AM | Disordered Eating and Athletic Performance: Where’s the Line?
If a person severely restricts his diet and exercises for hours each day, he has an eating disorder. If another does exactly the same but it is because she wants to make the lightweight rowing team (which has an upper weight limit), she’s a committed athlete. When the two overlap, and an athlete presents with eating disorder symptoms, how do we distinguish between the demands of the sport and the illness? I’ve been interested in the distinctions we make between disordered and […]

Werner, A., Thiel, A., Schneider, S., Mayer, J., Giel, K. & Zipfel, S. (2013). Weight-control behaviour and weight-concerns in young elite athletes – a systematic review, Journal of Eating Disorders, 1 (1) 18. DOI:

Martinsen, M., Bratland-Sanda, S., Eriksson, A. & Sundgot-Borgen, J. (2009). Dieting to win or to be thin? A study of dieting and disordered eating among adolescent elite athletes and non-athlete controls, British Journal of Sports Medicine, 44 (1) 70-76. DOI:

Rouveix M, Bouget M, Pannafieux C, Champely S & Filaire E (2007). Eating attitudes, body esteem, perfectionism and anxiety of judo athletes and nonathletes., International journal of sports medicine, 28 (4) 340-5. PMID:

Ferrand C, Magnan C & Philippe RA (2005). Body-esteem, body mass index, and risk for disordered eating among adolescents in synchronized swimming., Perceptual and motor skills, 101 (3) 877-84. PMID:


April 10, 2014

6:14 PM | Multiple-Credit Tests
Can chess statistics help design multiple-choice exams? UT Dallas source Bruce Pandolfini is one of very few living people who have been played by an Oscar-winning actor. He was the real-life chess teacher of junior chess player Joshua Waitzkin, who went on to become the world champion—in T’ai Chi. Their story is told in the […]

April 07, 2014

4:03 AM | Reflecting on the 2014 International Conference on Eating Disorders
Tetyana’s Note: Instead of writing two separate posts, I’ve decided to interject and add my own thoughts/opinions to Andrea’s post. For one, I think this will reduce repetition and I think it will be better to have any differing opinions in one place (I think this will facilitate discussion, I hope).  I will clearly mark my own comments so that they are not for conflated with Andrea’s. If I don’t comment it is because I wasn’t there, have nothing to […]
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