Scott Alexander discusses reader comments on his 'Geography of Madness' review, revising views on culture-bound syndromes and exploring various mental health topics. Longer summary

This post discusses various comments on Scott Alexander's review of 'The Geography of Madness'. It covers topics like culture-bound syndromes, the prevalence of brief psychotic disorder, the history of school shootings, the universality of PTSD, the rise of transgender identities, and the correlation between believing in ghosts and experiencing PMS. Scott revises some of his previous views, becoming more skeptical about many traditional culture-bound syndromes and acknowledging the complexity of cultural influences on mental health conditions. Shorter summary

Scott reviews a book on culture-bound syndromes, expanding the discussion to how all mental illnesses are influenced by culture to varying degrees. Longer summary

Scott Alexander reviews 'The Geography of Madness' by Frank Bures, which explores culture-bound syndromes like koro (belief in penis theft by witches). The book traces the history and spread of these syndromes across cultures. Scott expands on the idea, discussing how all mental illnesses exist on a spectrum of biological vs. cultural influence. He argues that even conditions considered 'real' in Western psychiatry, like anorexia or PTSD, have significant cultural components. The review touches on complex issues around gender dysphoria and cultural beliefs, concluding that there is no truly 'neutral' culture free from influence on mental health presentations. Shorter summary

Scott Alexander explores anorexia's biological aspects beyond cultural factors, presenting and analyzing del Giudice's 'self-starvation cycle' theory as a more comprehensive explanation of the disorder. Longer summary

Scott Alexander discusses anorexia, acknowledging its cultural component but emphasizing the biological aspects that persist even when cultural factors are no longer relevant. He presents del Giudice's 'self-starvation cycle' theory from 'Evolutionary Psychopathology', which suggests that initial food restriction, whether voluntary or involuntary, can trigger a biological response in predisposed individuals leading to ongoing anorexia. The post critiques purely cultural explanations of anorexia and highlights the limitations of current therapeutic approaches that focus solely on body image issues. Scott notes some weaknesses in the theory, particularly in explaining why not all starvation leads to anorexia, but overall finds it a useful model for understanding aspects of the disorder often overlooked by other explanations. Shorter summary

Scott Alexander discusses a genetic study that largely confirms historical American migration patterns described in 'Albion's Seed', noting both its confirmations and areas of confusion. Longer summary

Scott Alexander reviews a genetic study that analyzes the population structure of North America, relating it to David Fischer's book 'Albion's Seed' and the concept of American Nations. The study used 770,000 genomes to create clusters that largely confirm historical migration patterns described in these works. Scott notes how the genetic clusters match with New Englander and Pennsylvania Quaker migrations, and their westward spread. He expresses confusion about the Southern/Appalachian region's genetic divisions and disappointment that the study doesn't confirm some theories about West Coast populations. Overall, Scott sees this as an elegant example of hard science confirming historical speculation. Shorter summary