1. The Atreya Sampradaya traces its origins back to Brahma and includes teachers such as Atreya Punarvasu, Agnivesa, Bhela, Jatukarana, Parasara, and Ksharapani.
2. Agnivesa was considered the most intelligent of the six main disciples of Atreya Punarvasu. He authored the Agnivesa Tantra, which was later revised and became known as the Charaka Samhita.
3. These teachers transmitted the knowledge of Ayurveda, especially relating to internal medicine (kayachikitsa), as part of the Atreya Sampradaya lineage