Norepinephrine performs its actions on the target cell by binding to and activating adrenergic receptors. The target cell expression of different types of receptors determines the ultimate cellular effect, and thus norepinephrine has
While specific vitamins and minerals do not cause muscle cramps, a deficiency in potassium or magnesium can lead to sports-related leg cramping, according to Everyday Health. Additionally, a deficiency in vitamins E, A, and B causes cramping due to reduced circulation, as explained WeightTraining.com. Keep Learning.
...Dr. Oz, Dr. Weil and the Mayo Clinic, low magnesium is the major cause of muscle cramps everywhere in the body. (This includes leg and foot cramps). In fact, 78% of leg cramp sufferers have a severe lack of magnesium. This is a big problem -- because magnesium is vital for health. Your body needs magnesium to stop pain, swelling, tension and inflammation. Studies show that by fixing a magnesium deficiency, you can end leg cramps and stop them from ever coming back!