Magnesium is the fourth most abundant mineral in your body, a necessary co-factor for hundreds of enzymes, and the most critical mineral of all for coping with stress. Stress-related diseases which run rampant through modern society, like heart attacks and high blood pressure, are often accompanied by magnesium deficiency. Unfortunately, most Americans consume diets that fail to meet the government's RDA for magnesium, and magnesium intake is even lower than average among people who develop heart disease.
The best food sources of magnesium are vegetables like buckwheat (kasha), mature lima beans, navy beans, kidney beans, green beans, soy beans (including tofu), blackeyed peas, broccoli, spinach, Swiss chard, oats, whole barley, millet, bananas, blackberries, dates, dried figs, mangoes, watermelon, almonds, Brazil nuts, cashews, hazel nuts, shrimp, and tuna.
When you are chronically stressed, you can become magnesium deficient even if you eat these foods regularly. The complex relationship between magnesium and stress explains why many of the patients I see require magnesium supplements, because even a nutritious diet does not correct their magnesium deficiency.
If you are like most people, when you are exposed to the stress of contin-uous loud noise, for example, you become irrita-ble, easily fatigued and lose concentration. Your blood pressure may increase as the level of adrenalin, a stress hormone, in-creases in your blood. Under conditions of mental or physical stress, magnesium is released from your blood cells and goes into the blood plasma, from where it is excreted into the urine. Chronic stress depletes your body of magnesium. The more stressed you are, the greater the loss of magnesium. The lower your magnesium level to begin with, the more reactive to stress you become and the higher your level of adrenalin in stressful situations. Higher adrenalin causes greater loss of magnesium from cells. Administering magnesium as a nutritional supplement breaks this vicious cycle by raising blood magnesium levels and buffering the response to stress, building your resistance.
Personality has a marked effect on the stress-magnesium cycle. A study done in Paris found that stress-induced depletion of magnesium was much greater for people who show the "Type A", competitive, heart-disease prone behavior pattern than for their less competitive colleagues. Dr. Bella Altura, a physiologist at the State University of New York, has proposed that depletion of magnesium among Type A indiviudals is the main reason why Type A individuals are at increased risk of heart attacks.
It appears that the body's magnesium economy is an integral part of the stress response system. When stressed for any reason, the body's hormonal reponse causes an outpouring of magnesium from cells into plasma. This outpouring is a bit like taking magnesium by injection, except the source is internal. The effect of the sudden increase in magnesium is both energizing and calming. Magnesium is needed to burn sugar for energy; it also calms the excitation of cells produced by the stress-induced release of calcium. If there is insufficient dietary magnesium, or if there is insufficient rest in between episodes of stress, the body's magnesium stores are slowly depleted. The hormonal response to stress disintegrates. The plasma magnesium does not elevate in response to stress as it should, so that the energizing/calming effect of magnesium is not present to counter the nerve-jangling effects of adrenalin and other stress hormones. Consequently, the disorganizing effects of stress are intensified and coping is impaired. Higher blood pressure, abnormalities of your heartbeat and an increased risk of heart attacks or of angina (cardiac pain) may be one reult.