Siddha medicine is an ancient South Indian system that developed around 6000-7000 years ago. It views the human body as made up of five elements and three humors, and sees balance between these as necessary for health. Diagnosis involves examination of pulses, voice, tongue, body, waste products, and eyes to determine imbalance. Treatment is individualized based on diagnosis and seeks to restore balance through herbs, minerals, and formulations like oils and pills. Diet and lifestyle are also important aspects of treatment prescribed by Siddha physicians.