Magnesium is an essential mineral that plays a key role in various bodily functions, including regulating blood pressure, protein synthesis, and muscle and nerve function. It is also important for bone development, energy production, and maintaining a normal heart rhythm. Magnesium can be found in foods such as green leafy vegetables, nuts, legumes, seeds, whole grains, and soy products. However, many people do not get enough magnesium in their diet and may require supplementation. Magnesium supplements can help with sleep by activating gamma-aminobutyric acid (GABA), a chemical messenger that reduces the excitement or firing of neurotransmitters and calms the nervous system. Magnesium can also inhibit the N-methyl-d-aspartate (NMDA) receptor, which promotes muscle relaxation. Additionally, magnesium may help with anxiety and depression, which can disrupt sleep patterns. There are several types of magnesium supplements available, including magnesium glycinate, magnesium L-threonate, and magnesium oxide. The recommended daily intake of magnesium varies by age and sex, and it is important to talk to a doctor before taking any supplements.