Several reasons: Most high blood pressure is idiopathic (no reason, you just have it) whether it is systolic or diastolic. It runs in families so if your parents have it, you are more likely to get it. There are occasion cases secondary to specific causes such as adrenal tumors, kidney problems, or narrowing of the aorta (called coarctation) and that is called secondary hypertension.
Answered 9/28/2016
6.2k views
Age is #1: Risk factor. Our arteries stiffen as we age. Obesity & sedentary life style as well as excessive alcohol.
Answered 7/16/2013
5k views
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