A previous study evaluating the medical records of over a million people reported that while elevations in systolic blood pressure were indeed linked to a higher risk of heart disease-related chest pain as well as strokes, high diastolic blood pressure was liked to a great risk of abdominal aortic aneurysm, a condition where the main artery found the abdominal cavity leaks or bursts creating a life threating situation.
Even if your cholesterol and blood pressure levels are only mildly elevated, when they are both present in your body, they can interact with each other to more quickly damage your blood vessels and your heart. If not controlled, they eventually set the stage for heart attack and stroke, as well as other problems like kidney malfunction and vision loss.
High blood pressure usually has no signs or symptoms, so the only way to know if you have high blood pressure is to have yours measured. However, a single high reading does not necessarily mean you have high blood pressure. Many things can affect your blood pressure through the day, so your doctor will take a number of blood pressure readings to see that it stays high over time.