What is the Connection Between Hypertension and Diabetes? Diabetes occurs when the body is unable to use insulin properly or does not produce enough of it. This leads to a rise in blood sugar levels. If left uncontrolled, high sugar damages blood vessels and every organ that depends on blood circulation. Over time, this damage increases the chances of high blood pressure, heart disea... https://www.freedomfromdiabetes.org/blog/post/Relation%20between%20Hypertension%20(BP)%20and%20Diabetes/2618