Insomnia in midlife may manifest as cognitive problems in re
Data consist of prospective surveys from four phases of the Helsinki Health Study between 2000–2017 (n = 3748, aged 55–77 years, 80% women). Multinomial regression was used to examine the associations between sleep trajectories and cognitive function, adjusting for sociodemographic, health-related behavior, and health factor covariates.

Among statutory retirees, three latent group trajectories of insomnia-related symptoms were identified: stable low, decreasing, and increasing. Among those who had retired for disability reasons, we identified one additional latent group trajectory: stable high. Insomnia symptoms were associated with worse cognitive function. Early detection of insomnia symptoms would be a potential intervention point to improve both sleep quality and prevent cognitive decline in later life.

Source: https://journals.sagepub.com/doi/10.1177/08982643221078740
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