The collapse of the Tiwanaku state around 1000 C.E. caused disruptions in the south-central Andes, compounded by environmental shifts, food insecurity, and disease. This study examines how these factors impacted displaced communities, focusing on survival strategies. Using dental histology, I analyzed accentuated lines in tooth enamel, which reflect stress during infancy and early childhood. Enamel fragments from two cohorts at the Tumilaca la Chimba site in Moquegua, Peru, were analyzed: the Terminal Middle Horizon (1000-1250 CE) and the Late Intermediate Period (1250-1470 CE). Results showed a higher prevalence of accentuated lines in the TMH cohort (N=8) compared to the LIP cohort (N=16), though no significant difference was found. These findings suggest local continuity and stability in the aftermath of Tiwanku’s fragmentation.