Summary of the Article: Be Good to Your Teeth: Regular Flossing Reduces Risk of Stroke, AFib February 4, 2025

AHA publications :

Summary of the Article: Be Good to Your Teeth: Regular Flossing Reduces Risk of Stroke, AFib

February 4, 2025

A recent study to be presented at the American Stroke Association’s International Stroke Conference 2025 suggests that regular flossing may significantly reduce the risk of stroke and atrial fibrillation (AFib). Researchers analyzed data from over 6,000 participants with an average age of 62, followed for up to 25 years as part of the Atherosclerosis Risk in Communities study.

The results showed that flossing at least once per week was associated with a:

• 22% lower risk of ischemic stroke

• 44% lower risk of cardioembolic stroke

• 12% lower risk of AFib

More frequent flossing appeared to yield even greater risk reductions. The unexpected link between flossing and AFib risk surprised researchers.

Dr. Souvik Sen, the study’s lead author in the University of South Carolina and a member of the American Heart Association EPI and Stroke Council, , explained that oral health behaviors are closely linked to inflammation and artery hardening. He suggested that flossing may reduce stroke risk by lowering oral infections and inflammation while promoting other healthy habits.

They emphasized that this research provides new insights into the relationship between dental health and stroke risk. He also mentioned that, with further research, dental health practices might eventually be included in the Life’s Essential 8—a set of key health factors influencing cardiovascular risk.

The International Stroke Conference 2025 is taking place from February 5-7, 2025, at the Los Angeles Convention Center.