Indian medicine builds upon the tripartite Vedic approach to the world. It is noteworthy that there is a close parallel between Indian and Greek medicine. For example, the idea of breath (prana in Sanskrit, and pneuma in Greek) is central to both. Scholars believe that the idea of the correct association between the three elements of the wind, the gall, and the phlegm, which was described first by Plato in Greek medicine, appears to be derived from the earlier tridosha theory of Ayurveda. Apparently, the transmission occurred via the Persian empire.
Rhythms of life
The moon is called the “lord of speech” in the Rigveda. Other many references suggest that in the Rigvedic times the moon was taken to be connected with the mind. This is stated most directly in the the famous Purushasukta, the Cosmic Man hymn, of the Rigveda where it is stated that the mind is born of the moon. It appears that the relationships between the astronomical and the terrestrial were also taken in terms of periodicities and so there was knowledge of biological cycles.
What are the seats of these cycles? According to tantra the chakras of the body are the centers of the different elements as well as cognitive capacities and rhythms related to “internal planets.” The knowledge of these rhythms appears to have led to astrology.