As high stress has become ubiquitous in modern society, so too has the prevalence of overweight and obesity, leading many to question whether these changes are related. Does stress affect eating? In this article, we summarize research investigating associations between stress and eating and describe the mechanisms that may explain such associations. Our review indicates that regardless of how stress and eating are operationalized, manipulated, or analyzed, and regardless of sample characteristics, associations of stress with eating behavior are observed quite consistently, with some variability due to individual differences. There is also evidence that the link between stress and eating involves both biological and behavioral processes. We discuss the possible longer term implications of stress-eating associations for weight gain, weight stigma, and subsequent health, and we identify specific methodological and conceptual advances needed to improve further research and application.

Objective Fear and stigmatization are often used to motivate individuals with higher body weight to engage in healthy behaviors, but these strategies are sometimes counterproductive, leading to undesirable outcomes. In the present study, the impact of weight-based stigma on cognition (i.e., inhibitory control) and food selection (i.e., calories selected) was examined among individuals who consider themselves to be overweight. It was predicted that participants higher in perceived weight stigma would perform more poorly on an inhibitory control task and order more calories on a food selection task when they read about discrimination against individuals with higher weight versus discrimination against an out-group. Methods Participants completed online prescreen measures assessing whether they considered themselves to be overweight and their perceptions of weight stigma. Individuals who considered themselves to be overweight were invited into the laboratory to complete tasks that manipulated weight-based discrimination, then inhibitory control and food selection were measured. Results The higher participants were in perceived weight stigma, the more poorly they performed on the inhibitory control task and the more calories they ordered when they read about discrimination against individuals with higher body weight. These relationships were not observed when participants read about discrimination against an out-group. Conclusions The present findings provide evidence that perceptions of weight stigma are critical in understanding the impact of weight-based discrimination. Additionally, these results have theoretical and practical implications for both understanding and addressing the psychological and physical consequences of weight-based stigma.

Fear of fat may be one process through which perceptions of weight stigma lead to maladaptive eating behavior and weight gain. Understanding this important process may lead to more effective healthy weight interventions.

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Rejection sensitivity (RS) is the tendency for individuals to anxiously expect, readily perceive, and overreact to interpersonal rejection. Existing theory presumes that early experiences of rejection cause RS, although few studies have assessed this prospectively. Also relatively unstudied are individual differences in temperament that may contribute to RS. In a longitudinal study, we examined whether early social experiences and individual differences in temperament predict RS assessed subsequently. Results showed that positive early social experiences (ages 6 and 9 parents’ relationship quality and age 9 peer support) negatively predicted RS at age 12 and that negative affect (ages 6 and 9) positively predicted age-12 RS. These findings may have important implications for RS-reduction efforts and for understanding the many domain-specific manifestations of RS.