People who have diabetes are at a higher risk of heart diseases. This is a known fact. This is because high blood sugar damages your blood vessels and the nerves that control your heart and blood vessels. The risk goes up significantly if your sugar levels are not controlled. Your immunity is another thing that suffers if you have diabetes. With low immunity your risk of infections also goes up. Now a new study from Folkhalsan Research Centre (FRC) in Finland have found that bacterial infections may elevate the risk of coronary heart disease in individuals with type 1 diabetes.