Magnesium helps calm nerve activity by controlling how ions move across nerve cell membranes. Nerve cells rely on precise electrical changes to send signals. Magnesium sits in specific channels that regulate calcium entry into the cell. Calcium triggers nerve firing, so when magnesium is present in the right amount, it reduces excessive calcium flow. This keeps the nerve from firing too often or too strongly. Magnesium also supports the function of receptors that influence relaxation. When these