www.naturalstacks.com/blogs/news/magnesium

www.naturalnews.com/046401_magnesium_dietary_supplements_nutrient_absorption.html

magnesium deficiency can cause hreart palpatation and also calcification of heart and blood vessle

general association between magnesium and heart health www.ncbi.nlm.nih.gov/pmc/articles/PMC3957229/

 magnesium salts  could reduce the progress of aortic valve stenosis