Magnesium helps calm down the central nervous system (your brain and spinal cord). It also helps control messages your spinal cord sends between your brain and nerve cells. This neurological ...

Magnesium is a multifunctional mineral important ... which includes your brain, spinal cord, and nerves. For example, vitamin B12 is needed to form the protective barrier around nerves.

Some evidence suggests taking magnesium for sleep may improve sleep quality. Magnesium might also promote a good night's sleep. It may calm your central nervous system and treat sleep disorders.