» Dr. Jennifer Hahn-Holbrook
Assistant Professor

Crean College of Health and Behavioral Sciences; Psychology
Dr. Jennifer Hahn-Holbrook
Office Location:
Crean Hall 106 ( 501 W. Palm Ave )
Office Hours:
Monday 3:45pm-5:30pm (Spring 2017)
(714) 289-2061
University of California, Santa Cruz, Bachelor of Arts
Queen's University Belfast, Ph.D.

Jennifer Hahn-Holbrook is an assistant professor in Psychology at Chapman University. She completed her PhD at Queen's University Belfast in 2010 and was a postdoctoral fellow in Health Psychology at UCLA. Dr. Hahn-Holbrook is the director of the Biology of Parenting lab, housed in Chapman University's Early Human and Lifespan Development Research Center. Dr. Hahn-Holbrook's research broadly explores the interplay between the psychological and biological processes that shape maternal mental and physical health. Using interdisciplinary frameworks from evolutionary, biological, and health psychology, her research has three primary domains of focus: (1) the psychological impacts of biological changes surrounding pregnancy and breastfeeding, (2) the role of stress and maternal resources in both bolstering or undermining maternal behaviors and health, and (3) the evolutionary origins of maternal behaviors and mental health disorders. She recently published the "Mismatch Theory of Postpartum Depression" in Current Directions in Psychological Science, linking evolutionarily novel environmental factors like early weaning, vitamin D deficiencies, and isolation from kin support networks to the high rates of postpartum depression seen today. Her work has been published in top academic journals (Annual Reviews of Clinical Psychology, Psychological Science, Neuroscience and Biobehavioral Reviews) and been featured by many news outlets such as the Huffington Post, MSNBC, and the Boston Globe.


· PSY 204: Research Methods in Behavioral Sciences
· PSY 436: Health Psychology

Recent Creative, Scholarly Work and Publications
Holbrook, C., Hahn-Holbrook, J., & Holt-Lunstad, J. (2015). Self-reported spirituality correlates with endogenous oxytocin. Psychology of Religion and Spirituality, 7(1), 46.
Fessler, D.M.T., Holbrook, C., Pollack, J., & Hahn-Holbrook, J. (2014). Stranger danger: Parenthood and child presence increase the envisioned bodily formidability of menacing men. Evolution and Human Behavior, 35, 109-117.
Hahn-Holbrook, J., & Haselton, M. (2014). Is Postpartum Depression a Disease of Modern Civilization?. Current Directions in Psychological Science, 23(6), 395-400.
Yim, I. S., Tanner Stapleton, L. R., Guardino, C. M., Hahn-Holbrook, J., & Dunkel Schetter, C. (2015). Biological and Psychosocial Predictors of Postpartum Depression: Systematic Review and Call for Integration. Annual review of clinical psychology, 11, 99-137.
Hahn-Holbrook, J., Dunkel Schetter, C., Chander, A., & Hobel, C. (2013). Placental corticotropin-releasing hormone mediates the association between prenatal social support and postpartum depression. Clinical Psychological Science, 1, 253-265.
Hahn-Holbrook, J., Glynn, L., Haselton, M., & Dunkel Schetter, C. (2013). Does breastfeeding offer protection against maternal depressive symptomatology? A prospective study from pregnancy to two years after birth. Archives of Women’s Mental Health, 16, 411-422.
Hahn-Holbrook, J., Dunkel Schetter, C., & Haselton, M. (2013). The advantages and disadvantages of breastfeeding for maternal mental and physical health (pp. 414-439). In M. Spiers, P. Geller & J. Kloss (Eds.). Women’s Health Psychology. New Jersey: Wiley.
Hahn-Holbrook, J., Holt-Lunstad, J., Holbrook, C., Coyne, S.M., & Lawson, T. (2011). Maternal defense: Breastfeeding heightens aggression by reducing stress. Psychological Science, 22, 1288-1295. doi: 10.1177/0956797611420729
Hahn-Holbrook, J., Holbrook, C., & Haselton, M. (2011). Parental precaution: Neurobiological means and adaptive ends. Neuroscience and Biobehavioral Reviews, 35, 1052-1066. doi:10.1016/j.physletb.2003.10.071
Holbrook, C., Sousa, P., & Hahn-Holbrook, J. (2011). Unconscious vigilance: Worldview defense without adaptations for terror, coalition or uncertainty management. Journal of Personality and Social Psychology, 101, 451-466. doi: 10.1037/a0024033
Hahn-Holbrook, J., Holbrook, C., & Bering, J. (2010). Snakes, spiders, strangers: How the evolved fear of strangers may misdirect efforts to protect children from harm. In J. M. Lampinen & K. Sexton-Radek (Eds.), Protecting children from violence: Evidence based interventions. New York: Psychology Press.