My son suffered from anxiety and depression after his divorce. I read an article by George Eby about Magnesium Glycinate for depression. I bought my son some of the magnesium and after a few days he started feeling better and talked about having more energy and concentration. He took 800-1000 mgs. for a few days to build it up in his system, then backed down to 400 mgs. The Magnesium Glycinate really changed his life.