Let’s continue our conversation with Andrea Rosanoff, Ph.D., about the great importance of the mineral magnesium. In Part One (February 2015), we discussed the importance of magnesium for producing the energy needed for most of the body’s life processes. In Part Two (March 2015), we chatted about how magnesium is needed for the utilization of vitamin D, itself an extremely important vitamin/hormone. In Part Three (April 2015), we reviewed the possible benefits of magnesium on longevity. Now, let’s look at the many ways in which magnesium affects heart and artery health.