Archive · 29 Sep 2026
Insomnia Linked To Higher Stroke, Dementia And Hospitalisation Risks
A research review looked at how insomnia may affect health.
It found that people with insomnia had a higher risk of stroke.
The review also found a link between insomnia and dementia.
People with insomnia were more likely to be admitted to a hospital for any reason.
The researchers said sleep problems and mental health problems may worsen each other.
Depression and anxiety can make sleeping difficult.
Poor sleep can also make mood and emotional strength worse.
The review found a connection between insomnia and suicidal behaviour in the broader evidence.
These findings show links, but they do not prove that insomnia directly causes all of these problems.
People with insomnia had a 26% higher risk of stroke, according to the research.
The review also linked insomnia with dementia, although no specific dementia risk figure was provided.
Insomnia was associated with 28% higher odds of hospitalisation for any reason.
Depression and anxiety can contribute to sleep problems, while persistent poor sleep may worsen mood and emotional resilience.
The broader evidence base linked insomnia with suicidal behaviour, but this was separate from the stroke analysis.
- Who
- People with insomnia and the researchers conducting the review.
- What
- A research review found associations between insomnia, stroke, dementia, hospitalisation, and suicidal behaviour.
- When
- Not specified in the provided article.
- Where
- Not specified in the provided article.
- Why
- To examine health outcomes and related mental-health associations connected with insomnia.
- Stroke risk
- Insomnia was associated with a 26% higher risk of stroke.
- Dementia
- The review found an association between insomnia and dementia; no percentage was provided.
- Hospitalisation
- People with insomnia had 28% higher odds of hospitalisation for any reason.
- Mental health cycle
- Depression and anxiety can make it harder to fall or stay asleep, while poor sleep may worsen mood and emotional resilience.
- Suicidal behaviour
- Insomnia was linked with suicidal behaviour in the broader evidence base.
- Interpretation
- The findings describe associations and do not establish that insomnia directly causes every outcome.