In 2004, Shu-Shya Heh, Lindsey Coombes, and Helen Bartlett studied the association between Chinese postpartum (post-childbirth) practices and postpartum depression in Taiwanese women. The researchers surveyed Taiwanese women about the social support they received after giving birth and then evaluated the depression rates in the same women. Heh and her colleagues focused on the month following childbirth, which according to traditional Chinese medicine, is an important period that warrants a set of specialized practices to aid the woman's recovery. Collectively called zuoyuezi (doing the month), the postpartum practices require the help of someone else, typically the woman's mother or mother-in-law, to complete. Heh and her colleagues found that generally, Taiwanese women with more social support displayed fewer postpartum depressive symptoms, and concluded that the practice of doing the month helped prevent postpartum depression in Taiwanese women.

In his essay Evolution and Tinkering, published in
Science in 1977, Francois Jacob argued that a common analogy
between the process of evolution by natural selection and the
methods of engineering is problematic. Instead, he proposed to
describe the process of evolution with the concept of
bricolage (tinkering). In this essay, Jacob did not deny the
importance of the mechanism of natural selection in shaping complex
adaptations. Instead, he maintained that the cumulative effects of
history on the evolution of life, made evident by molecular data,
provides an alternative account of the patterns depicting the
history of life on earth. Jacob's essay contributed to
genetic research in the late twentieth century that emphasized
certain types of topics in evolutionary and developmental biology,
such as genetic regulation, gene duplication events, and the genetic
program of embryonic development. It also proposed why, in future
research, biologists should expect to discover an underlying
similarity in the molecular structure of genomes, and that they
should expect to find many imperfections in evolutionary history
despite the influence of natural selection.

In 2009, A. John Henderson and colleagues published “Mothers’ Anxiety During Pregnancy Is Associated with Asthma in Their Children,” hereafter, “Mothers’ Anxiety,” in The Journal of Allergy and Clinical Immunology. Previous studies had shown that maternal stress during pregnancy affects children’s health during childhood. The researchers explored the association of asthma in children with maternal anxiety during pregnancy. The cause of asthma is often unknown. Thus, the researchers tested the possibility that maternal anxiety may increase disease risk in the children, particularly the development of asthma. The authors reported a positive association between maternal anxiety during pregnancy and asthma in offspring, indicating the possibility of a causal relationship. The authors’ findings demonstrated the health effects of maternal stress during pregnancy on children’s physiological and immune development.