ABSTRACT The Nahs live in Taksing Circle of Upper Subansiri district, a remotest area of Arunachal Pradesh. Here communication system is too bad to maintain regular relation with outer world. The people live here principally with their traditional health care practices under the given ecological condition. The modern medicine system suddenly made its presence at this area through the Government Institutions. No doubt the people are traditional, but they accepted the system. Traditional concepts of health continues; at the same time they have grabbed new system without offering conspicuous resistance. The present paper tries to portray how the impinging modern medicine system adjusts and reacts with the traditional one in the Nah heritage.