What’s the link between diabetes, hypertension and heart disease? Cardiovascular disease is a serious disease that everyone may be at risk of if they do not have a healthy diet and lifestyle. Already potentially life threatening on its own, cardiovascular disease has a close relationship with diabetes and hypertension, which can further complicate the condition and increase the risks to your health. The inter-linked relationship of one to the other puts focus on the proper treatment and management of all three. Here’s what you need to know about how hypertension, diabetes and heart disease are linked.