It has been said that the ‘most common cause of stroke in the adult population is due to atherosclerosis.’ Correspondingly, it has also been said that the most common cause of stroke is the blockage of an artery by a clot.
Either way, magnesium prevents both the formation of blood clots and atherosclerosis besides many other serious or even fatal conditions.
With regard to magnesium and strokes:
 Assoc Prof Tan Kay Sin, “Uncommon causes of stroke.” The Star. 25 January 2009 [accessed: 01.12.2010] < http://thestar.com.my/health/story.asp?file=/2009/1/25/health/3094053&sec=health>
 Mildred S. Seeling and Andrea Rosanoff, ‘The Magnesium Factor’, (New York: Avery Books, 2003) pp.126-7
 Carolyn Dean, M.D., N.D., ‘The Magnesium Miracle’, (New York: Ballantine Books, 2007) p74
 Ibid., p81
 Ibid., pp. 79-80