What books can teach you how to lower blood pressure naturally?

Among the most recent books published on the subject, "The HeartMath Approach to Managing Hypertension: The Proven, Natural Way to Lower Your Blood Pressure" [ISBN: 1572244712] and "30 Ways to Lower Blood Pressure Naturally - A Step By Step Plan To Reduce Blood Pressure Quickly" appear to be popular and written by well credentialed authors. It should be noted that any plan to reduce blood pressure should be discussed with a qualified health care professional.