Healthy for some but not for all: The moderating role of BMI on perceived health climate–insomnia relationship

Abstract This study examines the mediated relationship between perceived health climate and insomnia via exhaustion, and whether the mediation effect is weaker for individuals with higher body mass index (BMI). Results from multi‐wave field data revealed that perceived health climate negatively predicted insomnia through reduced exhaustion. Moreover, the mediation effect was weaker among people with higher BMI (obese individuals) than people with lower BMI (non‐obese individuals). This study expands our understanding of the workplace health climate and its unintended consequences for obese individuals. Also, it encourages practitioners to develop health climate promotion programmes that intend to reduce employee exhaustion first prior to specific behavioural changes and takes into account individual differences.