People who floss their teeth at least once a week are reducing their risk of stroke caused by a blood clot, researchers are scheduled to report Wednesday.

Poor oral health could be a potential risk factor for cardiovascular disease. New research shows that good oral health habits, such as flossing, may reduce the risk of stroke and atrial fibrillation (AFib).

Flossing your teeth at least once a week may be linked to a lower risk of stroke caused by a blood clot blocking brain blood flow and irregular heartbeats, according to a preliminary study presented at the American Stroke Association's International Stroke Conference 2025,