Muscle spasms are involuntary contractions of one or more muscles, often causing discomfort or pain. They can occur in various parts of the body, such as the legs, back, or neck, and may last from a few seconds to several minutes. Common causes include dehydration, overexertion, or muscle strain. These spasms can affect anyone, but they are more prevalent in athletes or individuals who engage in intense physical activity. Treatment typically involves stretching the affected muscle, applying heat or cold, and ensuring proper hydration. In some cases, underlying medical conditions may need to be addressed.