This study was designed to assess to the effects of lost resources on exercise behavior among a sample of 30 foreign exchange students who were identified as having experienced a relapse in their level of physical activity. The first phase of the study was longitudinal in nature, and compared baseline data collected from a sample of 110 exchange students from Malaysia upon their initial arrival in England, with data collected from the same sample four months later. Results of a multivariate analysis of variance indicated a significant effect for scores on processes of change, self-efficacy, and decisional balance [F (12, 18) = 12.74, p < .001]. Subsequent examination of univariate F-values also revealed significant differences for self re-evaluation, reinforcement management, self liberation, and self-efficacy. Results from the second phase of the study, which qualitatively assessed the relationship between reductions in physical activity and personal/material resources, revealed that exercise behavior was significantly influenced by resources lost as a result of being in an unfamiliar environment. Implications for health promotion practioners and researchers are discussed.