Cardiovascular disease (CVD), including stroke, remains the leading cause of death worldwide. While diet and exercise are well-known preventive measures, emerging research suggests that oral health—specifically flossing—may also play a role in reducing cardiovascular risk.

Flossing helps remove plaque and bacteria between the teeth, preventing gum disease and inflammation. Studies now indicate that this simple habit could also lower the risk of atrial fibrillation (AFib) and blood clot-related strokes. Researchers analysing data from thousands of participants found that those who flossed regularly had a significantly lower risk of ischaemic stroke and AFib. This suggests that maintaining good oral hygiene might protect against heart disease in ways previously underestimated.

Inflammation is a key factor in many chronic illnesses, including heart disease. Poor oral hygiene can lead to gum infections, which contribute to systemic inflammation and artery damage. By reducing oral bacteria and inflammation, flossing may help protect the cardiovascular system.

Although flossing alone will not eliminate heart disease risk, it can be an easy addition to a heart-healthy lifestyle. Alongside flossing, key preventive measures include eating a balanced diet, exercising regularly, maintaining a healthy weight, and managing conditions like high blood pressure and diabetes.

Heart health is not just about diet and exercise—oral hygiene plays a role too. A few minutes of flossing each day could be a small but powerful step toward better overall health and a stronger heart.