Scott investigates unusually high suicide rates in Guyana, Greenland, and Siberian regions, exploring potential ethnic, cultural, and social factors contributing to these trends. Longer summary

This post explores unusually high suicide rates in different parts of the world, focusing on Guyana, Greenland, and remote Siberian regions. Scott examines potential causes for these high rates, including ethnic and cultural factors, alcohol consumption, social disruption, and abuse. For Guyana, he notes the high rate among Indo-Guyanese, speculating on possible cultural or historical reasons. In Greenland, he discusses the dramatic increase in suicide rates since the 1970s, linking it to forced modernization and a spike in alcohol consumption. For Siberian groups, he explores various theories including genetics and cultural traditions, but ultimately suggests that the combination of alcohol-naive hunter-gatherers, high alcohol consumption, and disruption of traditional ways of life may be the primary factors across these regions. Shorter summary

Scott Alexander reviews 'The Body Keeps The Score', a book on PTSD, praising its historical context but criticizing its outdated science and uncritical embrace of alternative therapies. Longer summary

Scott Alexander reviews 'The Body Keeps The Score', a book about post-traumatic stress disorder (PTSD) by Bessel van der Kolk. The review covers the book's historical context, its insights into PTSD symptoms and neurobiology, and its treatment recommendations. Scott praises the historical accounts of PTSD recognition but criticizes the book's outdated scientific claims, lack of consideration for genetic factors, and uncritical enthusiasm for alternative therapies. He notes the book's emphasis on bodily disconnection in PTSD patients and the importance of reconnecting with the body in treatment. Overall, Scott finds the book less helpful than expected for guiding clinical practice, but acknowledges its potential value in highlighting the importance of trauma screening and specialized trauma clinics. Shorter summary

Scott Alexander discusses a study challenging the idea that childhood abuse lowers IQ, and explores its implications for understanding the effects of child abuse on various outcomes. Longer summary

This post discusses a study by Danese et al. challenging the assumption that childhood abuse lowers IQ. The study found that after adjusting for pre-existing factors, there was no significant difference in IQ between abused and non-abused children. Scott Alexander explores the implications of this study in the context of shared-environment-skeptical psychiatry and discusses other studies showing limited effects of child abuse on various outcomes. He notes that while these findings are interesting, they may understate the dangers of severe abuse due to sample size limitations. The post concludes by suggesting that child abuse likely causes PTSD-like symptoms but may not have effects drastically different from normal PTSD. Shorter summary