The long and short of this article: Your body requires magnesium sulfate for over 300 different functions in the body. So take a bath every once in a while or soak your feet when you can...you'll be glad you did.
http://www.realfarmacy.com/22-uses-epsom-salt-every-home-garden/
http://www.realfarmacy.com/22-uses-epsom-salt-every-home-garden/