Which of the following is not a preventive measure for postural defect?

Self-medication is not a preventive measure for postural defect. Postural defect refers to an abnormal alignment of the body that can result from poor posture or habits, such as slouching, carrying heavy bags on one shoulder, or sitting for long periods without proper back support. Preventive measures for postural defect include adequate exercise, balanced diet, and good habit formation. Adequate exercise can help to strengthen the muscles that support good posture, while a balanced diet can provide the necessary nutrients for healthy bones and muscles. Good habit formation involves practicing good posture, taking breaks from prolonged sitting, and using proper lifting techniques. Self-medication, on the other hand, is not a preventive measure for postural defect and can actually be harmful if used improperly. It is important to consult with a healthcare professional for proper diagnosis and treatment of any postural defects.