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It has been suggested that there are associations among insomnia symptoms and unhealthy behaviours. However, previous studies are sparse and mainly cross‐sectional, and have not been focused on several key unhealthy behaviours. The aim of this study was to examine whether the associations are bidirectional, i.e. whether insomnia symptoms are associated with subsequent unhealthy behaviours, and whether...
Obese people tend to report more insomnia symptoms than their normal-weight counterparts. However, longitudinal studies are sparse. We aimed to examine whether relative weight is associated with changes over time in insomnia symptoms.The data were derived from the prospective Helsinki Health Study cohort among 40–60-year-old employees of the City of Helsinki. Baseline survey data were collected in...
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