Ayurveda dates back an estimated 5,000-10,000 years and is widely considered to be the oldest form of health care in the world. It is understood by many scholars that knowledge of Ayurveda spread out from India and influenced the ancient Chinese system of medicine, Unani medicine, and the humoral medicine practiced by Hippocrates in Greece. For this reason, Ayurveda is often referred to as the "Mother of all healing."

The knowledge of Ayurveda is believed to be of Divine origin and was communicated to the saints and sages of India who received its wisdom through deep meditation. Ayurvedic knowledge was passed down orally through the generations and then written down in the Vedas, the sacred texts of India believed to be the oldest writings in the world.

Written in Sanskrit, the Vedas cover a vast number of subjects from grammar to health care. The Vedas were written approximately 2500 BC or earlier. Current knowledge about Ayurveda is mostly drawn from relatively later writings, primarily the Caraka Samhita (approximately 1500 BC), the Ashtang Hrdyam (approximately 500 AD), and the Sushrut Samhita (300 - 400 AD). These three classics describe the basic principles and theories from which Ayurveda has evolved. They also contain vast clinical information on the management of a multitude of diseases expanded upon by later writings and research.