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Meaning-making has been one of the primary domains of religion throughout history, and some have claimed that this is religion’s central function. Yet, the modern era has seen a proliferation of other social institutions that generate meaning for people. Here we reflect on what religious meaning-making can tell us about meaning-making in secular institutions, with a particular focus on sport. Sport as a meaning-making institution is puzzling since sports are generally considered leisure activities, not serious enough to provide meaningful structure and purpose to human lives. Nonetheless, people do derive meaning from sport and we argue that because sport shares many features with religion, it offers a unique opportunity to examine a secular meaning-making institution. We offer a theoretical framework for the study of meaning-making that derives from our conceptual approach to religion as an adaptive system. We use this approach, and other anthropological research, to delineate seven general characteristics of human meaning-making systems: collective, constructed, subjective, narrative, relational, transcendent, and growth-oriented. These features of meaning-making systems highlight why sport has been so successful at offering meaning to sport enthusiasts, both fans and athletes alike. We conclude with a brief speculative evolutionary scenario that may explain our proclivity for seeking meaning, and why secular institutions will continue to fill that role when religious worldviews are not compelling.

Recent work on the evolution of religion has approached religions as adaptive complexes of traits consisting of cognitive, neurological, affective, behavioural and developmental features that are organized into a self-regulating feedback system. Religious systems, it has been argued, derive from ancestral ritual systems and continue to be fuelled by ritual performances. One key prediction that emerges from this systemic approach is that the success of religious beliefs will be related to how well they are connected to rituals and integrated with other elements of the religious system. Here, I examine this prediction by exploring the rich world of Jewish demonology. As a case study, I briefly survey the historical trajectory of demonic beliefs across Jewish communities and focus on one demon, a ruach ra'ah , that has survived the vicissitudes of Jewish history and maintained its relevance in contemporary Jewish communities. I argue that it has done so because of its linkage with a morning handwashing ritual and its effective integration into the core elements of Jewish religious systems. This article is part of the theme issue ‘Ritual renaissance: new insights into the most human of behaviours’.

Malnutrition among women of reproductive age is a significant public health concern in low- and middle-income countries. Of particular concern are undernutrition from underweight and iron deficiency, along with overweight and obesity, all of which have negative health consequences for mothers and children. Accumulating evidence suggests that risk for poor nutritional outcomes may be mitigated by social support, yet how social support is measured varies tremendously and its effects likely vary by age, kinship and reproductive status. We examine the effects of different measures of social support on weight and iron nutrition among 677 randomly sampled women from rural Bangladesh. While we find that total support network size mitigates risk for underweight, other results point to a potential tradeoff in the effects of kin proximity, with nearby adult children associated with both lower risk for underweight and obesity and higher risk for iron deficiency and anaemia. Social support from kin may then enhance energy balance but not diet quality. Results also suggest that a woman's network of caregivers might reflect their greater need for help, as those who received more help with childcare and housework had worse iron nutrition. Overall, although some findings support the hypothesis that social support can be protective, others emphasize that social relationships often have neutral or negative effects, illustrating the kinds of tradeoffs expected from an evolutionary perspective. The complexities of these effects deserve attention in future work, particularly within public health, where what is defined as 'social support' is often assumed to be positive. This article is part of the theme issue 'Multidisciplinary perspectives on social support and maternal–child health'.

A large literature proposes that preferences for exaggerated sex typicality in human faces (masculinity/femininity) reflect a long evolutionary history of sexual and social selection. This proposal implies that dimorphism was important to judgments of attractiveness and personality in ancestral environments. It is difficult to evaluate, however, because most available data come from large-scale, industrialized, urban populations. Here, we report the results for 12 populations with very diverse levels of economic development. Surprisingly, preferences for exaggerated sex-specific traits are only found in the novel, highly developed environments. Similarly, perceptions that masculine males look aggressive increase strongly with development and, specifically, urbanization. These data challenge the hypothesis that facial dimorphism was an important ancestral signal of heritable mate value. One possibility is that highly developed environments provide novel opportunities to discern relationships between facial traits and behavior by exposing individuals to large numbers of unfamiliar faces, revealing patterns too subtle to detect with smaller samples. Significance It is a popular assumption that certain perceptions—for example, that highly feminine women are attractive, or that masculine men are aggressive—reflect evolutionary processes operating within ancestral human populations. However, observations of these perceptions have mostly come from modern, urban populations. This study presents data on cross-cultural perceptions of facial masculinity and femininity. In contrast to expectations, we find that in less developed environments, typical “Western” perceptions are attenuated or even reversed, suggesting that Western perceptions may be relatively novel. We speculate that novel environments, which expose individuals to large numbers of unfamiliar faces, may provide novel opportunities—and motives—to discern subtle relationships between facial appearance and other traits.

Glowacki's account overlooks the role of religion in the regulation of cooperation, tolerance, and peace values. We interrogate three premises of Glowacki's argument and suggest that approaching religion as an adaptive system reveals how religious commitments and practices likely had a more substantial impact on the evolution of peace and conflict than currently presumed.

There has been increasing interest in the evolutionary study of religion, but perfunctory fractionalization has limited our ability to explain how and why religion evolved, evaluate religion's current adaptive value, and assess its role in contemporary decision-making. To move beyond piecemeal analyses of religion, I have recently offered an integrative evolutionary framework that approaches religions as adaptive systems. I argue that religions are an adaptive complex of traits consisting of cognitive, neurological, affective, behavioral, and developmental features that are organized into a self-regulating feedback system. Here I explore four advantages of this systemic approach to religion: it avoids definitional problems that have plagued the study of religion, affords a contextual understanding of religious belief, informs current debates within the evolutionary study of religion, and provides links to both the natural sciences and humanities. I argue that the systemic approach offers the strongest potential for real progress and broad application of evolutionary theory to the study of religion.

Researchers have long speculated about the evolutionary benefits of religiosity. One explanation for the evolution of religious ritual is that rituals signal commitment to co-religionists. As a major domain of prosocial behaviour, alloparental care – or care directed at children by non-parents – is a plausible benefit of religious signalling. The religious alloparenting hypothesis posits that parents who signal religious commitment receive greater alloparental support. Prior research on religiosity, cooperation, and allocare tends to treat individuals as isolated units, despite the inherent collective nature of religious cooperation. Here, we address this limitation in a survey-based study of 710 parents in rural Bangladesh. Instead of focusing only on mothers, we consider the interplay between both mothers and fathers in eliciting allocare, and leverage variation in the covertness of religious rituals to test a key mechanistic assumption linking religious ritual with cooperation. We find that parents who practice religious rituals more frequently receive greater alloparental support from co-religionists. This effect is moderated by parent gender, as well as variation in the visibility of religious rituals. Women’s private practices positively affect only those alloparents with whom they share a household, whereas men’s public practices positively affect alloparents more broadly.

We argue that a closer look at the practices and tools that humans use to support willpower, and the cultural contexts in which they are employed, can broaden the applicability of Ainslie's theory and facilitate the development of more effective self-control techniques. To support our argument, we examine Alcoholics Anonymous's method of temptation resistance known as “playing the tape through” (PTT).