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 […]

March 23, 2014

1:07 PM | For the Health of It: Disentangling “Healthy Eating” and “Orthorexia”
When is “healthy eating” not so healthy? The line between “normal” and “pathological” eating behaviours is blurry, to say the least. For some time, researchers have been attempting to define a “new” category of eating disorders: orthorexia. This category would capture “obsessions” with “healthy eating” that are (presumably) not already captured in current diagnostic criteria for eating disorders. If you’ve been […]

Koven, N.S. & Senbonmatsu, R. (2013). A neuropsychological evaluation of orthorexia nervosa, Open Journal of Psychiatry, 3 214-222. Other: 10.4236/ojpsych.2013.32019

Varga, M., Thege, B.K., Dukay-Szabó, S., Túry, F. & van Furth, E.F. (2014). When eating healthy is not healthy: orthorexia nervosa and its measurement with the ORTO-15 in Hungary., BMC psychiatry, 14 (1) 59-70. PMID:


March 20, 2014

9:40 PM | The Power Of ACC
Euler’s back-door pass to Gauss sinks a bucket ACC stands for the Atlantic Coast Conference, which is an athletic organization that contains Georgia Tech and fourteen other colleges. In basketball, the top several teams in the ACC qualified for the NCAA championship tournament, which started today. We call the NCAA tournament “March Madness” because the […]
7 Results