Blogspam of<p><a href="http://www.physoc.org/press-release/2017/why-do-we-develop-high-blood-pressure" rel="nofollow">http://www.physoc.org/press-release/2017/why-do-we-develop-h...</a><p>The original has footnoted additional references.<p>TL;DR: "In 90-95 percent of people, high blood pressure has no identifiable cause..."