Facial masculinity is related to perceived age, but not perceived health (2005)
Journal Article
Boothroyd, L., Jones, B., Burt, D., Cornwell, R., Little, A., Tiddeman, B., & Perrett, D. (2005). Facial masculinity is related to perceived age, but not perceived health. Evolution and Human Behavior, 26(5), 417-431. https://doi.org/10.1016/j.evolhumbehav.2005.01.001

Variation in women's preferences for male facial masculinity may reflect variation in attraction to immunocompetence or to maturity. This paper reports two studies on (a) the interrelationships between women's preferences for masculinity, apparent he... Read More about Facial masculinity is related to perceived age, but not perceived health.

Menstrual cycle, pregnancy and oral contraceptive use alter attraction to apparent health in faces (2005)
Journal Article
Jones, B., Perrett, D., Little, A., Boothroyd, L., Cornwell, R., Feinberg, D., …Moore, F. (2005). Menstrual cycle, pregnancy and oral contraceptive use alter attraction to apparent health in faces. Proceedings of the Royal Society B: Biological Sciences, 272(1561), 347-354. https://doi.org/10.1098/rspb.2004.2962

Previous studies demonstrating changes in women's face preferences have emphasized increased attraction to cues to possible indirect benefits (e.g. heritable immunity to infection) that coincides with periods of high fertility (e.g. the late follicul... Read More about Menstrual cycle, pregnancy and oral contraceptive use alter attraction to apparent health in faces.