Magnesium deficiency can be an underlying cause for several mental disorders such as stress, anxiety, and emotional apathy (a condition characterized by a lack of emotion or mental numbness.
Many studies have connected low magnesium levels with a higher risk of depression and can even lead to delirium, coma, and death. Scientists also thought that a person with a magnesium deficiency might be more prone to develop anxiety.
Magnesium supplements can benefit a subset of people with stress and anxiety disorders. It also works by stimulating more nerve fibers and regulating the levels of stress hormones.