The word Ayurveda is a Sanskrit word (आयुर्वेद) that evolves from combination of two words, "Ayush" (आयुस्) meaning life and "veda" (वेदः) meaning knowledge. Ayurveda means "Knowledge about Life" Ayurveda is a 3000 year old science that originated in India. Present region of North Indian, Pakistan, Nepal, Barma, Tibet and East-Northern places of Bangladesh. The components and concept of Ayurveda is rooted in Vedas. Ayurveda considered as the one of the Upveda of ‘Adharva veda’.
Our ‘Acharya’ are considered as ‘Apta’, which simply means they free from all the negative energy from the earth, no intention to cheat others, not want to get any profit from anyone. They saw all the people as one, not based on community system. I believe that due to this Ayurveda is still exists, due to their kindness and truthfulness in heart, not me and any of other ayurveda doctors.