Rapidly declining body temperature in a tropical human population - HAL-SHS - Sciences de l'Homme et de la Société Accéder directement au contenu
Article Dans Une Revue Science Advances Année : 2020

Rapidly declining body temperature in a tropical human population

Résumé

Normal human body temperature (BT) has long been considered to be 37.0°C. Yet, BTs have declined over the past two centuries in the United States, coinciding with reductions in infection and increasing life expectancy. The generality of and reasons behind this phenomenon have not yet been well studied. Here, we show that Bolivian forager-farmers (n = 17,958 observations of 5481 adults age 15+ years) inhabiting a pathogen-rich environment exhibited higher BT when first examined in the early 21st century (~37.0°C). BT subsequently declined by ~0.05°C/year over 16 years of socioeconomic and epidemiological change to ~36.5°C by 2018. As predicted, infections and other lifestyle factors explain variation in BT, but these factors do not account for the temporal declines. Changes in physical activity, body composition, antibiotic usage, and thermal environment are potential causes of the temporal decline.
Fichier principal
Vignette du fichier
Gurven_41867.pdf (1.09 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03081481 , version 1 (18-12-2020)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Michael Gurven, Thomas S. Kraft, Sarah Alami, Juan Copajira Adrian, Edhitt Cortez Linares, et al.. Rapidly declining body temperature in a tropical human population. Science Advances , 2020, 6 (44), ⟨10.1126/sciadv.abc6599⟩. ⟨hal-03081481⟩
59 Consultations
79 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More