Magnesium is an essential mineral involved in many physiological processes, including nerve function, muscle relaxation, and stress regulation. Increasing attention has been given to its potential role in improving sleep quality and reducing anxiety symptoms. Research suggests that magnesium may help regulate neurotransmitters and support the body’s stress response system. While it is not a cure or treatment, understanding how magnesium interacts with the body can provide insight into its potential benefits. This article explores the relationship between magnesium, sleep, and anxiety, along with common sources and considerations for maintaining adequate intake through diet and lifestyle.