Magdalena Klimek


Since 2007 I work with Grazyna Jasienska at the Mogielica Human Ecology Study Site in southern Poland. I am involved in many national and international research projects, also as a Principal Investigator.

I am interested in developmental origins of adult reproductive history and health. In my work I use three different markers: 2D:4D digit ratio, finger ridge counts and level of facial fluctuating asymmetry.




Kuna B, Galbarczyk A, Klimek M, Nenko I, Jasienska G. 2018. Age difference between parents influences parity and number of sons. American Journal of Human Biology: e23095

Richards G, Klimek M, Jasienska G, Marcinkowska UM. 2018. Digit ratio (2D:4D) and circulating testosterone, oestradiol, and progesterone levels across the menstrual cycle. Early Human Development 117: 68-73

Marcinkowska UM, Little AC, Galbarczyk A, Nenko I, Klimek M, Jasienska G. 2017. Costs of reproduction are reflected in women’s faces: post-menopausal women with fewer children are perceived as more attractive, healthier and younger than women with more children. American Journal of Physical Anthropology 2017: 1–5

Klimek M, Marcinkowska UM, Jasienska G. 2017. Value of digit ratio 2D:4D, a biomarker of prenatal hormone exposure, is stable across the menstrual cycle. Early Human Development 110: 21-24

Klimek M, Galbarczyk A, Nenko I, Jasienska G. 2016. Women with more feminine digit ratio (2D:4D) have higher reproductive success. American Journal of Physical Anthropology 160: 549-553

Ziomkiewicz A, Sancilio A, Galbarczyk A, Klimek M, Jasienska G, Bribiescas RG. 2016. Evidence for the cost of reproduction in humans: women with high reproductive effort have higher levels of oxidative stress in post-reproductive years. PLoS ONE 11: e0145753

Alvarado LC, Muller MN, Thompson ME, Klimek M, Nenko I, Jasienska G. 2015. The Paternal Provisioning Hypothesis: effects of workload and testosterone production on men’s musculature. American Journal of Physical Anthropology 158: 19-35

Klimek M, Galbarczyk A, Colleran H, Thune I, Ellison PT, Ziomkiewicz A, Jasienska G. 2015. Digit ratio (2D:4D) does not correlate with daily 17β–estradiol and progesterone concentrations in healthy women of reproductive age. American Journal of Human Biology 27: 667-673

Puskarczyk K, Galbarczyk A, Klimek M, Nenko I, Odrzywołek L, Jasienska G. 2015. Being born after your brother is not a disadvantage: Reproductive success does not depend on the sex of the preceding sibling. American Journal of Human Biology 27: 731-733

Klimek M, Galbarczyk A, Nenko I, Alvarado LC, Jasienska G. 2014. Digit ratio (2D:4D) as an indicator of body size, testosterone concentration and number of children in human males. Annals of Human Biology 41: 518-523