Poor sleep is associated with a range of heart problems, including high blood pressure and increased risk of heart attack. Now, new research shows a link between insomnia and heart failure. Researchers in Norway found that people who experienced all three insomnia symptoms: difficulty falling asleep, difficulty staying asleep, and non-restorative sleep, had more than triple the risk of developing heart failure than those with no insomnia symptoms. People with all three insomnia symptoms also had significantly higher risk of heart failure than those with one or two symptoms of insomnia. The study did not provide any evidence as to how insomnia might cause heart failure, and indicated that additional research is necessary.
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