Magnesium plays a central role in nerve transmission and muscular activity. It also functions in a protective role against excessive excitation that can lead to brain cell death. Magnesium is an element of intense interest for the potential prevention and treatment of chronic pain, migraine headache, epilepsy, Alzheimer’s Disease, Parkinson’s Disease, stroke, anxiety and depression. For more detailed information and an extensive list of references see: The Role of Magnesium in Neurological Disorders.
A study at the Australian National University found that eating more magnesium-rich foods leads to better brain health and less brain shrinkage in later life.