Which of the following is a common cause of Restless Legs Syndrome (RLS)?

Iron deficiency is recognized as a common cause of Restless Legs Syndrome (RLS). This condition is characterized by uncomfortable sensations in the legs and an irresistible urge to move them, often worsening during periods of rest. Iron plays a critical role in the function of dopamine, a neurotransmitter involved in controlling movement. Low levels of iron can lead to reduced dopamine activity, which can exacerbate the symptoms of RLS.

Many studies have established a clear link between iron deficiency and the severity of RLS symptoms, indicating that individuals with this deficiency often experience more pronounced symptoms compared to those with adequate levels of iron. Addressing iron deficiency by dietary means or through supplementation can lead to significant relief in many patients suffering from RLS. Thus, understanding the connection between iron levels and RLS can help in the diagnosis and treatment of the disorder.