The main aim for this research paper is to understand the concept of Immunity, Free Radicals, Antioxidants, Oxidative Stress and the Ayurvedic herbs acting as Antioxidants. This study explains the interlink among Immunity, Free Radicals, Antioxidants and Oxidative Stress. In this modern era or stressful life, it has become very difficult for every individual to maintain the healthy life and remain happy. This study even explains the factors which are responsible for acting as antioxidants that aid to enhance the defense act of our Immune system and prevent from many chronic diseases. This study also highlights the Ayurvedic medicinal plants having the chemical constituents being antioxidants helps to maintain the good health and slow down the ageing process.

Keywords: Immunity; Antioxidants; Free radicals; Ayurveda.