REJUVENATION THERAPY AND THEIR MODE OF ACTION: A DRAVYAGUNA INSIGHT

The term Rasayana (Rasa+Ayana) essentially refers to nutrition and nourishment. More specifically it refers to bioavailability of nutrition. There can be many mechanisms through which a Rasayana remedy may accelerate the phenomenon of nourishment logically. It seems that a Rasayana may act at three levels of bio-system to promote nutrition; at the level of Agni by promoting the digestion and metabolism, at the level of Srotas by promoting the microcirculation and tissue perfusion and at the level of Rasa itself by acting as direct nutrition. Thus the Rasayana remedies act essentially on nutrition dynamics and rejuvenate the body and psyche. They are the powerful means of promotion of health, longevity and prevention of diseases. They sustains the Ojas status and promote Vyadhiksamatva i.e. immunity. Many Rasayana drugs of Ayurveda have been recently demonstrated to possess immuno-enhancer activity when tested on scientific parameters.