Flossing Linked to Reduced Stroke Risk, Study Finds

A new study presented at the American Stroke Association’s International Stroke Conference 2025 suggests that flossing at least once a week may lower the risk of stroke by up to 44% and atrial fibrillation (AFib) by 12%, SciTech Daily reported. Researchers from Prisma Health Richland Hospital examined over 6,000 participants in the Atherosclerosis Risk in Communities (ARIC) study.

Key findings indicate that regular flossing is associated with a 22% lower risk of ischemic stroke and a 44% lower risk of cardioembolic stroke, independent of other oral hygiene practices. The study highlights the potential of flossing to reduce inflammation and oral infections, contributing to overall cardiovascular health.

Lead author Souvik Sen, M.D., emphasized the importance of affordable dental hygiene habits, noting that many people find dental care costly. While the study shows a correlation, further research is needed to establish a direct causal relationship between flossing and stroke risk reduction.