What causes a musule to cramp?

Muscle cramps are caused by involuntary contractions of the muscle, often due to factors such as dehydration, electrolyte imbalances (like low levels of potassium or magnesium), overexertion, or prolonged sitting or standing. They can also occur as a result of poor circulation or nerve compression. Certain medical conditions and medications may increase the likelihood of experiencing cramps as well. Proper hydration, stretching, and balanced nutrition can help prevent them.