The bacteria behind gum disease may also harm your heart valves, early research suggests

A close up of a man opening his mouth as two gloved hands hold it.

A common culprit behind severe gum disease may also stiffen and narrow the heart's aortic valve, preliminary research suggests. This may help explain links between gum problems and poor heart health.

Scientists have long linked severe gum disease to inflammation throughout the body and a higher risk of heart problems, including coronary artery disease, which can raise the risk of heart attack. Studies have also found that treating gum disease can improve blood-vessel health.