Relationship between proximity and physiological stress levels in hunter-gatherers: The Hadza

In recent years there has been a great deal of documentation on how social relationships are related to various aspects of human wellbeing. However, until recently most studies investigating the effects of social relationships on wellbeing have applied social network measures to reported social cont...

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Bibliographic Details
Published in:Hormones and behavior 2023-01, Vol.147, p.105294-105294, Article 105294
Main Authors: Fedurek, Piotr, Lacroix, Laurent, Aktipis, Athena, Cronk, Lee, Makambi, Jerryson, Mabulla, Ibrahim, Lehmann, Julia, Berbesque, J. Colette
Format: Article
Language:English
Subjects:
Cortisol
Egalitarian social model
Female
Friendship
Humans
Interpersonal Relations
Social integration
Social Interaction
Sociality
Stress
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Summary:In recent years there has been a great deal of documentation on how social relationships are related to various aspects of human wellbeing. However, until recently most studies investigating the effects of social relationships on wellbeing have applied social network measures to reported social contacts. Recent advances in the application of bio-loggers in biological studies have now made it possible to quantify social relationships based on in-person, rather than self-reported, social interactions. We used GPS-derived in-camp and out-of-camp proximity data to analyse how in-person proximity is related to Hair Cortisol Concentration (HCC) among Hadza hunter-gatherers. Time spent in close proximity to other camp members was associated with higher HCC, especially in women. In contrast, individuals who spent more time in close out-of-camp proximity to their best friend experienced lower HCC. Our study suggests that physiological costs related to group living might be mitigated by in-person interactions with close friends. We also find that the location (i.e., in-camp vs out-of-camp) of proximity to others and self-perceived friends is associated with HCC among the Hadza. •In-camp proximity to other camp members is related to lower stress in Hadza men but not women•Out-of-camp proximity to other camp members is related to higher stress in Hadza men and woman•Out-of-camp proximity to friends is related to lower stress in Hadza men and woman
ISSN:0018-506X
1095-6867
DOI:10.1016/j.yhbeh.2022.105294