According to the Ayur-vedic—that is also Veda-ayur means span of life, and Veda means knowledge. That is called Ayur-veda. So this Vedic knowledge of the span of life is very simple. They don’t require pathological laboratory, clinic, no. They require simply to study these three elements, kapha, pitta, vayu. And they, their science is to feel the pulse. You know, every one of you, that the pulse is moving tick, tick, tick, tick, like this. So they know the science: by feeling the beating of the pulse, they can understand what is the position of these three elements, kapha, pitta, vayu. In the Ayur-veda, sastra veda, there are, the symptoms, with the… These veins are moving like this, heart is moving like this, beating like this, then the position is this. As soon as they understand the position is this, they verify the symptoms. They enquire from the patient, “Do you feel like this? Do you feel like this?” If he says, “Yes,” then it is confirmed. The inner things, how the pulse is beating, and the symptoms are confirmed, then the medicine is ready. These are benefits of free medical treatment in Ancient India.
Ref >> Srimad-Bhagavatam.1.2.6 lecture, New Vrindaban, September 5, 1972