Muscle tightness refers to a condition where muscles feel stiff or tense, often resulting in discomfort or reduced flexibility. This can occur due to various factors, including overuse, injury, or prolonged inactivity. When muscles are tight, they may not function optimally, leading to limitations in movement and potential pain. Common causes of muscle tightness include exercise, stress, and poor posture. Stretching and relaxation techniques can help alleviate tightness, while regular physical activity promotes muscle health. If tightness persists, it may be advisable to consult a healthcare professional for further evaluation and treatment options.