Anorexia Nervosa: Can We Blame The Season Of Birth?

You might have heard that individuals born between the months of June – August (or sometimes March – August) have a higher chance of developing anorexia nervosa. But is it true? A lot of studies have been done to investigate the question of whether a season of birth (or a month) correlates with a higher risk of anorexia or bulimia nervosa. The results are inconsistent, weak, and fraught with methodological problems.

But first, how could seasons (or the average temperature during birth, or conception) have an effect on the etiology of eating disorders? What’s the hypothesis?

There seem to be two main ideas (summarized in Winje et al., 2012):

  1. alterations in neuropsychological function as a result of sunlight exposure during gestation or postpartum, maternal infections during pregnancy, or nutritional changes (seasonal variation in nutrients, vitamins)
  2. alterations in fertility/reproductive patterns of the parents due to cultural influences, disordered eating in
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Can Socioeconomic Status Predict Mental Health Literacy?

Is there an association between socioeconomic status (SES) and mental health literacy? Can we predict the extent of an individual’s knowledge about mental disorders based on how much money they make, how much education they’ve received, or how far up the career ladder they’ve climbed?

That is the question that Olaf von dem Knesebeck and colleagues attempted to answer in a paper published recently in the journal Social Psychiatry and Psychiatric Epidemiology

The authors interviewed 2,014 men and women, residents of two German cities Hamburg and Munich, using a telephone survey. The split is roughly 50/50 between men and women respondents and the mean age was 47.5. The authors presented each interviewee with two vignettes out of three (one on depression, one on schizophrenia, and one on eating disorders).

The gender in the depression and schizophrenia vignettes was varied 50/50 between male and female patients, but all vignettes … Continue reading →