The Relationship Between Sleep Quality and Mortality is not Straightforward
The correlation between poor sleep quality and increased mortality is not as straightforward as previously thought. Research indicates that factors such as weight and chronic illness may mediate this relationship, suggesting that underlying causes lead to both reduced sleep quality and higher mortality risk. Therefore, improving long-term health may require addressing other factors beyond just focusing on sleep quality.
Inadequate sleep duration and poor sleep quality are becoming significant public health concerns, particularly in relation to cardiometabolic risk factors like obesity. Research shows a link between substandard sleep quality or insufficient sleep durations and health issues, including a higher risk of dementia and mortality from all causes. Understanding the complex interplay between sleep, dementia, and mortality is crucial for further research and interventions.
This study investigates the relationship between poor sleep quality, dementia status, and mortality risk, while considering potential confounding factors. Results suggest that poor sleep quality may not have a direct causal effect on mortality risk once lifestyle and health-related factors are taken into account. Dementia is shown to be positively associated with mortality risk, particularly in individuals with better sleep quality and among males.
Link: https://doi.org/10.18632/aging.206102
