LYCOS RETRIEVER 
Magnesium: Body
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Magnesium is one of the body's major electrolytes, essential for metabolism, and an aid to the growth of bone as well as nerve and muscle health. Researchers now believe magnesium is responsible for the health of the heart, blood pressure, circulation, and overall relaxation including muscle relaxation. Professional athletes or anyone who engages in heavy physical labor must keep magnesium levels up, as the mineral facilitates oxygen delivery to working muscle tissue. Magnesium-rich foods include meats, seafood, green vegetables, dairy products, nuts, kidney and lima beans, bananas, peanut butter and potatoes. An association has been observed between magnesium and normal concentration in children. It has been well established that intravenous magnesium supports muscle relaxation.
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Magnesium, a mineral, is a white metal that is abundantly found in nature, and the human body contains approximately one ounce of magnesium, mostly in its bones and muscles. Magnesium is found in both plant and animal sources, but plants provide a richer source of this mineral. It may be one of the most important anti-aging minerals, and magnesium is essential for calcium and vitamin C absorption, as well as helping the metabolism of phosphorus, sodium, and potassium. Overall, magnesium helps convert blood sugar into energy and it is necessary for effective nerve and muscle functioning. It is often referred to as the anti-stress mineral. Many people are deficient in this mineral because of reliance on processed foods and because magnesium is easily depleted by stress, some diseases and medicines, and intense physical activity.
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Magnesium has many essential metabolic functions in the body. It is important in the production and transfer of energy, in muscle contraction and relaxation, in nerve conduction, in protein synthesis, and in many biochemical reactions as a cofactor to enzymes. Magnesium ... dilates blood vessels.
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Magnesium in the human body ranks fourth in overall abundance, but intracellularly (within cells) it is second only to potassium. Between 60-65% of magnesium in the human body is found in bone. Magnesium that does not exist as part of bone, is mainly found within muscle intracellularly (1,2). About 1% of magnesium is found in the extracellular fluid. Inside cells, magnesium may be found bound to phospholipids. In animal studies, it has been shown that bone magnesium is used to maintain levels throughout the body and muscle magnesium is maintained (3), when magnesium intake is restricted.
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Magnesium deficiency can cause metabolic changes that may contribute to heart attacks and strokes. There is ... evidence that low body stores of magnesium increase the risk of abnormal heart rhythms, which may increase the risk of complications associated with a heart attack. Population surveys have associated higher blood levels of magnesium with lower risk of coronary heart disease. In addition, dietary surveys have suggested that a higher magnesium intake is associated with a lower risk of stroke. Further studies are needed to understand the complex relationships between dietary magnesium intake, indicators of magnesium status, and heart disease.
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Magnesium, in its purest form, can be compared with aluminium, and is strong and light, so it is used in several high volume part manufacturing applications, including automotive and truck components. Specialty, high-grade car wheels of magnesium alloy are called "mag wheels". In 1957 a Corvette SS, designed for racing, was constructed with magnesium body panels. Volkswagen has used magnesium in its engine components for many years. For a long time, Porsche used magnesium alloy for its engine blocks due to the weight advantage. There is renewed interest in magnesium engine blocks, as featured in the 2006 BMW 325i and 330i models. The BMW engine uses an aluminium alloy insert for the cylinder walls and cooling jackets surrounded by a high temperature magnesium alloy AJ62A.
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