Gandhi is a PhD student Anthropology at UNM.
This research was made possible in part by funding from the Latin American & Iberian Institute and Tinker Foundation Field Research Grant (FRG). For more information about the FRG, please visit the LAII website.
I spent June to December of 2013 in the rainforest of Bolivia among an indigenous group known as the Tsimané. They live as hunter-horticulturalists in an environment with minimal market integration, no electricity, natural fertility, and a subsistence lifestyle. I studied their sleep patterns using wrist-worn sleep monitors and interviews. I hypothesize that their sleep duration is determined by a tradeoff between the need for rest and bodily repair and opportunity costs of sleep, as productive nighttime activity. The environment in which the Tsimané live is more similar to that in which humans evolved than that of contemporary US and western society where electricity and wage labor obscure the relationship between sleep and wake activity. The preliminary analysis of my dataset supports this tradeoff model, and when fully developed will become my dissertation.