@simply_breezy1.0: Magnesium plays an important role in regulating how nerves send signals. It helps control the movement of calcium in nerve cells, which affects how easily nerves “fire.” When magnesium levels are adequate, nerve cells are less likely to become over-excited, which can reduce sensations like: • Burning • Tingling • Electric-shock pain This calming effect on nerve signaling is related to how magnesium interacts with receptors involved in pain signaling, such as the NMDA receptor.