The increased risk of stroke that comes with smoking may extend to nonsmokers who live in the same household and breathe in secondhand smoke, a U.S. study suggests. Researchers found that never-smokers who had a stroke were nearly 50 percent more likely to be exposed to secondhand smoke at home than people who had never had a stroke. During the study, stroke survivors exposed to secondhand smoke were also more likely to die from any cause compared to those without secondhand smoke exposure.
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Secondhand smoke linked to higher risk of stroke