SoS 262: Pregnancy Under Pressure with Dr. Kyle Wiley

In this episode, we talk with Dr. Kyle Wiley, Assistant Professor of Sociology & Anthropology at the University of Texas at El Paso, about how social and traumatic stressors during pregnancy become biologically embedded and shape maternal and infant health. Kyle shares his path into biological anthropology and discusses his biosocial research on perinatal health disparities in the United States and Brazil. We explore his work on interpersonal violence during pregnancy in São Paulo, Brazil, focusing on how trauma affects maternal and infant cortisol regulation and what this means for fetal programming and intergenerational health. We also discuss his recent research on pica among Latina pregnant women, which takes a novel approach by examining stress hormones and inflammation rather than micronutrient deficiencies. The episode closes with a look at Kyle’s new faculty role at UTEP, his current projects, and how he maintains work–life balance as an early-career scholar. ------------------------------ Find the work discussed in this episode: Wiley, K. S., Gouveia, G., Camilo, C., Euclydes, V., Panter-Brick, C., Matijasevich, A., Ferraro, A. A., Fracolli, L. A., Chiesa, A. M., Miguel, E. C., Polanczyk, G. V., & Brentani, H. (2025). A Preliminary Investigation of Associations Between Traumatic Events Experienced During Pregnancy and Salivary Diurnal Cortisol Levels of Brazilian Adolescent Mothers and Infants. American Journal of Human Biology, 37(2), e70004. https://doi.org/10.1002/ajhb.70004 Kwon, D., Knorr, D. A., Wiley, K. S., Young, S. L., & Fox, M. M. (2024). Association of pica with cortisol and inflammation among Latina pregnant women. American Journal of Human Biology, 36(5), e24025. https://doi.org/10.1002/ajhb.24025 ------------------------------ Contact Dr. Wylie: [email protected] ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Courtney Manthey, Co-Host, Website: holylaetoli.com/ E-mail: [email protected], Twitter: @HolyLaetoli Cristina Gildee, SoS Co-Producer, HBA Junior Fellow Website: cristinagildee.com, E-mail: [email protected],

In this episode, hosts Chris and Mecca interview Dr. Cindi SturtzSreetharan about language decoding, why inclusive language matters for better science, the importance of clearly defining the terms we use, and how ethnographic methods help contextualize research. Dr. SturtzSreetharan is a President’s Professor at the School of Human Evolution & Social Change at Arizona State University. She has a bachelor’s degree in international relations from Willamette University, a master’s in Asian studies from the University of Oregon, and a doctorate in Anthropology from the University of California at Davis. Her research interests center on a language-in-interaction approach to the construction of identities, including masculinity. Much of her earlier work focused on how Japanese men use language as a resource for creating, maintaining, or refuting a masculine identity. She has also worked on language use in reality TV shows, serial dramas, and film, focusing specifically on language and fatherhood. For the past decade, Dr. SturtzSreetharan has turned her attention to the intersection of language, the body, and medicine. Her current work is an investigation of metabolic syndrome in Japan, a so-called lifestyle condition that affects more men than women. She is particularly interested in the way that everyday, mundane language interactions contribute to the production of felt shame and stigma around body size, shape, and care. ------------------------------ Find the papers discussed in this episode: SturtzSreetharan, C.L & Shibamoto-Smith, J. It’s not the language, it’s us: Recommendations on what language can do and on what we as writers can do. American Journal of Human Biology 37(6): e70079 https://doi.org/10.1002/ajhb.70079 (2025) SturtzSreetharan, C.L., DuBois, L.Z., & Brewis, A. 2025. Defining and deploying gender/sex in human biology: Where are we? Where should we be? American Journal of Human Biology 37(6):e70093 https://doi.org/10.1002/ajhb.70093 (2025) ------------------------------ Contact Dr. SturtzSreetharan: [email protected] ------------------------------ Contact the Sausage of Science Podcast and the Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Mecca Howe, Co-Host, HBA Fellow Email: [email protected], Linkedin: https://www.linkedin.com/in/mecca-howe-phd-22a48173/

In this episode, we talk with Dr. Molly Zuckerman, Professor of Biological Anthropology at Mississippi State University, about ethics, care, and responsibility in bioarchaeology. We discuss her recent article, “Exercises in ethically engaged work in biological anthropology,” and explore how human remains can be dehumanized in research and teaching collections, and how approaches such as osteobiographies can help restore personhood. Dr. Zuckerman also reflects on generational tensions in the field, the ethical challenges posed by climate change to archaeological sites, and how early-career scholars can develop thoughtful, context-specific ethical frameworks. ------------------------------ Find the work discussed in this episode: Zuckerman, M. K., Marklein, K. E., Austin, R. M., & Hofman, C. A. (2025). Exercises in ethically engaged work in biological anthropology. American Journal of Biological Anthropology, 186(1), e25015. ------------------------------ Contact Dr. Zuckerman: [email protected] ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Cristina Gildee, Co-Host, Co-Producer, HBA Fellow Website: cristinagildee.com, E-mail: [email protected], Mecca Howe, Co-Host, Co-Producer, HBA Fellow E-mail: [email protected]

Dr. Nicola Hawley is an Associate Professor of Epidemiology at the Yale School of Public Health, where she also holds a secondary appointment in Anthropology. She serves as Associate Director for Dissemination and Implementation Science at the Yale Center for Clinical Investigation. Trained as a human biologist, Dr. Hawley is an internationally recognized expert in maternal and child health, with a focus on how early life experiences, from pregnancy through childhood, shape long-term risks for obesity and chronic disease. Her research bridges epidemiology, anthropology, and global health, using community-engaged and culturally grounded approaches to improve health outcomes in under-resourced and Indigenous settings. Much of her work centers in the Pacific, particularly in Sāmoa and American Sāmoa, where she leads NIH- and PCORI-funded studies on gestational and Type 2 diabetes, obesity prevention, and intergenerational health. She’s also deeply committed to mentorship, helping train the next generation of global health and maternal-child health researchers. ------------------------------ Find the work discussed in this episode: Heinsberg LW, Loia M, Tasele S, Faasalele-Savusa K, Carlson JC, Anesi S, et al. (2025) Study protocol for the Health Outcomes in Pregnancy and Early Childhood (HOPE) Study: A mother-infant study in American Samoa. PLoS One 20(9): e0326644. https://doi.org/10.1371/journal.pone.0326644 ------------------------------ Contact the Sausage of Science Podcast and the Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Courtney Manthey, Guest-Co-Host, Website: holylaetoli.com/ E-mail: [email protected], Twitter: @HolyLaetoli Anahi Ruderman, SoS Co-Producer, HBA Junior Fellow, E-mail: [email protected]

In this fun and “soupy” episode, hosts Cara and Chris chat with Dr. Melanie Beasley about putrefied meat, maggots, stable isotopes, and media attention at the most inconvenient times. Dr. Beasley directs the BioAnth Isotope Ecology Research Laboratory (BIER Lab) at Purdue University. Her work focuses broadly on human-environment interactions throughout the hominin lineage when the environment is influencing our evolutionary history, in the Holocene when humans are influencing the availability of prey resources, and in modern forensic contexts when the environment imprints meaningful geolocation information in biological tissues. She uses stable isotope geochemistry to connect humans and the environment they live in to understand changing climate, resource availability, and life history. The use of stable isotope geochemistry and the big data generated by such an analytical method in anthropology has only scratched the surface of what it can offer to the discipline and its contributions to humanity’s grand challenges. Through her scholarship, she sees the Anthropology of Tomorrow as an interdisciplinary blending of the social and natural sciences in an applied approach that makes anthropology relevant to living communities. Dr. Beasley is also interested in science communication to engage with the public about anthropology. Please contact her via email if you are interested in working in the lab as an undergraduate or for enquiries about graduate student training. Dr. Beasley is accepting applications for future MA/PhD students. ------------------------------ Find the paper discussed in this episode: Beasley, M. M., Lesnik, J. J., & Speth, J. D. (2025). Neanderthals, hypercarnivores, and maggots: Insights from stable nitrogen isotopes. Science Advances, 11(30), eadt7466. https://doi.org/10.1126/sciadv.adt7466 ------------------------------ Contact Dr. Beasely: [email protected] ------------------------------ Contact the Sausage of Science Podcast and the Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Cara Ocobock, Co-Host Website: sites.nd.edu/cara-ocobock/, Email:[email protected], Twitter:@CaraOcobock Mecca Howe, SoS Co-Producer, HBA Fellow Email: [email protected]

Cecilia Padilla Iglesias estudió Ciencias Humanas y de la Evolución en University College de Londres, donde empezó a interesarse por cómo surgió y cambió la diversidad cultural y biológica en nuestra especie. Hizo un máster en Antropología Evolutiva en Cambridge y luego un doctorado en la Universidad de Zúrich sobre cómo los cambios ecológicos y sociales han moldeado la dinámica de las poblaciones humanas. Durante el doctorado pasó varios meses en la República del Congo trabajando con comunidades nómadas de cazadores-recolectores. Hoy trabaja en Cambridge con una beca de investigación, estudiando cómo la vida nómada y la movilidad se reflejan en el genoma de estas poblaciones. La idea central de su trabajo es que la movilidad ha sido clave para la resiliencia de los humanos durante cientos de miles de años, y que fue lo que permitió adaptarse a enormes cambios ecológicos y demográficos en los diferentes ecosistemas que fue habitando. ------------------------------ Encuentra el trabajo comentado en este episodio: Padilla-Iglesias, C., Xue, Z., Leonardi, M., Paijmans, L.A,J., Colucci, M., … Manica, A. (2025). Pan-African metapopulation model explains Homo sapiens genetic and morphological evolution. bioRxiv 2025.05.22.655514; doi: https://doi.org/10.1101/2025.05.22.655514 ------------------------------ Contact the Sausage of Science Podcast and the Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Anahí Ruderman, Guest-Co-Host, SoS Co-Producer, E-mail: [email protected]

Lawrence M. Schell is a Distinguished Professor in the Department of Anthropology and the College of Integrated Health Sciences at the University at Albany, SUNY, with a joint appointment in the Department of Epidemiology and Biostatistics. His research explores the interrelationship between biology and culture, with a particular focus on how contemporary urban environments shape human health and development. Dr. Schell’s early work examined noise as a form of urban stress, investigating its effects on prenatal and postnatal growth. He later expanded his research to include pollutants such as polychlorinated biphenyls (PCBs) and lead, situating these exposures within the broader context of urban adaptation and health disparities. The study of lead exposure in Albany, NY, examined its influence on child physical and cognitive development, with attention to maternal nutrition and other factors that affect the transfer of lead from mother to fetus. In partnership with the Akwesasne Mohawk Nation he has recently completed three major projects. The first examined how PCBs that were used in manufacturing affect physical and sexual development during adolescence. His second project followed up the adolescents in project 1 to learn how exposure had influenced their transition into adulthood. The third project, also conducted with the Akwesasne community, explored how environmental pollutants may impact reproductive health and fertility among women. Through this work, Dr. Schell highlights the urban environment as a critical frontier for human adaptation, emphasizing the challenges posed by pollution, stress, and other features of modern city life while recognizing that these challenges are inequitably distributed in society. In 2004 Schell established a research center at Albany with NIH support to grow research on health disparities. Continued NIH support culminated in an endowment grant that will support the center and the development of health disparities research for many years to come. ------------------------------ Contact the Sausage of Science Podcast and the Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Courtney Manthey, Guest-Co-Host, Website: holylaetoli.com/ E-mail: [email protected], Twitter: @HolyLaetoli Anahi Ruderman, SoS Co-Producer, HBA Junior Fellow, E-mail: [email protected]

This week on The Sausage of Science, Chris and Cristina explore pica (the craving and consumption of nonfood items like earth or clay) through the lens of maternal health and nutrition. Our guest, Dr. Leila Larson of the University of South Carolina, shares insights from her study on pica among pregnant women in Malawi, part of the REVAMP iron supplementation trial. She discusses how iron status, infection, and environment influence maternal health, why intravenous iron may be a more effective approach to reducing pica, and what these cravings reveal about nutrition and development worldwide. We also hear about her new U.S.-based study and how she balances a vibrant global research career. ------------------------------ Find the work discussed in this episode: Larson, Leila M., Martin Mwangi, Rebecca Harding, Ernest Moya, Ricardo Ataíde, Glory Mzembe, Ashley Thurber et al. "Effects of ferric carboxymaltose on pica among pregnant women in Malawi: a sub-study to a randomized controlled trial." The Journal of Nutrition (2025). ------------------------------ Contact Dr. Larson: [email protected] Website: thenelilab.com ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Cristina Gildee, Co-Host, Co-Producer, HBA Fellow Website: cristinagildee.com, E-mail: [email protected],

Dr. Sofía Pacheco-Fores is a bioarchaeologist whose research focuses on migration in ancient Mexico. Using a range of methods including archaeological biogeochemistry and phenotypic variation in human skeletal and dental morphology, she reconstructs migration patterns to understand the experiences of past migrants and their recipient communities. She examines the role migration played in social and cultural change, including in ancient state formation, the spread of novel material culture complexes, the expression of social inequality, and eruptions of mass violence. She has on-going collaborative research projects in central Mexico, Oaxaca, and northwestern Mexico. In addition to her research, Dr. Pacheco-Fores is involved in science education and outreach activities with the goal of fostering increased inclusion and diversity within anthropology. She is a Senior Editor at Anthro Illustrated, a collaborative project creating illustrations of anthropologists of diverse backgrounds at work. She also encourages increased representation and participation in anthropology through the Skype A Scientist program, speaking with bilingual K-12 students about anthropology and bioarchaeology. ------------------------------ Find the paper discussed in this episode: SI Pacheco-Fores, CT Morehart. 2024. Beyond “non-local”: biogeochemical and morphological approaches to examining diverse migrant experiences in Epiclassic central Mexico. Bioarchaeology International 8:104-122. https://doi.org/10.5744/bi.2022.0038 SI Pacheco-Fores, CT Morehart, JE Buikstra, GW Gordon, KJ Knudson. 2021. Migration, violence, and the “other”: a biogeochemical approach to identity-based violence in the Epiclassic Basin of Mexico. Journal of Anthropological Archaeology 61: 101263. https://doi.org/10.1016/j.jaa.2020.101263 ------------------------------ Contact Dr. Azcorra-Pérez: [email protected] ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Courtney Manthey, Guest-Co-Host, Website: holylaetoli.com/ E-mail: [email protected], Twitter: @HolyLaetoli Anahi Ruderman, SoS Co-Producer, HBA Junior Fellow/ E-mail: [email protected]

This week on The Sausage of Science, Chris and Cara talk with Dr. Josh Brahinsky, a researcher in the Transcultural Psychiatry Department at McGill University and the Department of Religious Studies at Stanford University, whose work sits at the intersection of anthropology, psychology, and neuroscience. Josh explores how contemplative practices like prayer and meditation shape sensory experience, perception, and emotion, focusing especially on the embodied and affective dimensions of charismatic evangelical worship. With a background that bridges the humanities and sciences, a PhD in the History of Consciousness from UCSC, and a postdoctoral fellowship in Anthropology at Stanford, Josh brings a truly interdisciplinary lens to understanding what happens when people reach for the divine, and how those moments transform the body and mind alike. ------------------------------ Find the book discussed in this episode: Tongues of Fire: How Charismatic Prayer Changes Evangelical Brains and Mobilizes Spirit-Filled Activism www.bloomsbury.com/us/tongues-of-f…-9798881804992/ Find the Article: Brahinsky, J., Mago, J., Miller, M., Catherine, S., & Lifshitz, M. (2024). The Spiral of Attention, Arousal, and Release: A Comparative Phenomenology of Jhāna Meditation and Speaking in Tongues. American Journal of Human Biology, 36(12), e24189. doi.org/10.1002/ajhb.24189 ------------------------------ Contact Dr. Brahinsky: [email protected] ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Chris Lynn, Host Website: cdlynn.people.ua.edu/, E-mail: [email protected], Twitter:@Chris_Ly Cara Ocobock, Host Website: sites.nd.edu/cara-ocobock/, Email:[email protected], Twitter:@CaraOcobock Cristina Gildee, SoS Co-Producer, HBA Fellow Website: cristinagildee.org, E-mail: [email protected],