Bacteria in Your Mouth May Lead to Heart Attacks, Reveals New Research

Heart diseases are on the rise globally, and the number of heart attack cases continues to grow each year. While the common causes of heart attacks include high blood pressure, high cholesterol, obesity, stress, and an unhealthy lifestyle, new research has uncovered a surprising connection between oral health and heart health. It’s commonly believed that heart attacks primarily affect older adults, but the risk now extends to people of all ages. Recent findings suggest that the bacteria residing in your mouth could also play a significant role in triggering heart attacks, underscoring the need to pay attention not just to cardiovascular health but also to oral hygiene.

Researchers at Tampere University in Finland conducted a study on more than 200 patients suffering from coronary artery disease. They analyzed plaque—fatty deposits that accumulate in the arteries and contribute to blockages. The study revealed that DNA from oral bacteria, particularly from the viridans streptococci group, was present in these arterial plaques. These bacteria typically live harmlessly in the mouth but can enter the bloodstream and accumulate in the arteries, forming a layer known as a biofilm. This biofilm is resistant to the body's immune responses and triggers ongoing inflammation. Under stress or during infections, these bacteria can weaken the walls of the arteries, increasing the risk of plaque rupture and, consequently, a heart attack.

This study clearly links oral hygiene to heart health. Neglecting mouth cleanliness can result in more than just dental issues—it could significantly increase your risk of serious heart problems. Maintaining oral hygiene through regular brushing, flossing, and the use of mouthwash can help reduce the presence of harmful bacteria and, in turn, lower the risk of plaque buildup in the heart’s arteries.

Experts emphasize that oral care is not merely about maintaining clean teeth and gums—it plays a vital role in preventing cardiovascular issues. When oral bacteria settle in the arteries and form biofilm, the resulting inflammation can compromise artery walls, leading to rupture and potentially triggering a heart attack. This makes regular dental check-ups and good oral hygiene habits essential, not only for your smile but also for your heart.

To protect both your oral and heart health, it's advised to consume a diet rich in fruits, vegetables, and omega-3 fatty acids, engage in at least 30 minutes of daily light exercise, and manage stress through practices like yoga or meditation. Avoiding smoking and alcohol is equally important. Additionally, maintain a strict oral care routine that includes brushing, flossing, and using mouthwash daily, along with visiting your dentist at least once every six months.

This new research highlights that caring for your mouth could be a crucial and often overlooked step in protecting your heart.