Studies have shown migraine sufferers with poor cerebrovascular tone have low levels of magnesium.  Magnesium is a natural mineral that is necessary for healthy bodily function as it promotes heart health, stabilizes blood pressure, regulates nerve and muscle function and builds bone, DNA and protein.  Magnesium is intimately involved in the control of N-methyl-D-aspartate (NMDA) glutamate receptors which play an important role in pain transmission in the nervous system and in the regulation of cerebral blood flow.  Magnesium ions plug...