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Health risks associated with chronic insomnia

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2026-10-17 07:03 UTC → 2026-10-23 01:49 UTC · added ~~removed~~

A systematic review published in ~~the journal~~ Sleep Medicine Reviews has identified significant links between chronic insomnia and several serious health conditions. Researchers from Austria, Germany, Italy, and Switzerland analyzed data from approximately 20 large-scale studies involving millions of participants globally. The research found that insomnia is associated with a 26% increased risk of stroke and nearly 30% higher odds of being hospitalized for various reasons. The study also noted connections between persistent sleep issues and higher rates of dementia, particularly Alzheimer’s disease. Regarding mental health, the review found that individuals with insomnia were more likely to suffer from depression and suicidal behavior. Medical experts noted a potential two-way relationship or “compounding feedback loop” where anxiety and depression disrupt sleep, while poor sleep quality subsequently reduces stress resilience and increases vulnerability to psychiatric disorders. Recent updates to the analysis, involving over 1.3 million participants, reiterate these findings while offering potential biological mechanisms. Researchers suggest that hypertension and the brain’s inability to clear residual proteins—such as those linked to Alzheimer’s—during sleep may play a role. However, experts cautioned that these findings indicate statistical links rather than direct causation. Newer research has expanded on these cardiovascular risks. A study focusing on women found that those experiencing both persistent insomnia and short sleep duration faced a 70 to 75 percent higher risk of heart attack, stroke, or heart failure compared to those without sleep issues.

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