According to Tibbeunani, the people of above 60 years of age are considered as mashaikh. Unani scholars were well aware about the aging process and categorize the mashaikh under abdanezaeefa. According to modern theory, Aging is a process of gradual, progressive and generalized impairment of functions resulting in the loss of adaptive response to stress and in increasing the risk of age-related diseases. While according to unani concept, aging is the result of tahleeleratoobateghareezia by hararateghareezia to maintain the organism in functional state and inadequate Compensation of tahleel by Quwwatehadima that maintain balance or homeostasis. Due to increased tahleel of ratoobateghareezia, hararateghareezia weakens because ratoobateghareezia provide matter for hararateghareezia. Quwwatehadima also get weakened due to weakness in hararateghareezia, ultimately resulting in decreased formation of akhlat and ratoobat, and decreased availability of the substitute of tahleel. Decrease in hararateghareezia changes the mizaj relatively to barid; gradual increase with age in baroodat results in decline of quwa (faculties) thereby afaal (functions) of the body. As all quwa requires hararat for performing afaal (function). Depravity of humours or dryness continues neutralizing the ratoobat of the body until the form ceases to have a capacity for life. Thus, healthy aging can be secured by the safeguarding of innate moisture from too rapid dissipation, and maintaining it at such a degree of strength that the original type of constitution peculiar to the person shall not change even up to the last moment of life. A number ofsingle and compound drugs like Amla, Zanjabeel, Asgandh, Garlic, Zafraan, Kalonji, Tiryaqwabai, Majoonfalasfa etc. categorize to possess such effects are frequently used inunani medicine and now are proven to have anti-oxidant and immunomodulator properties. Scientific studies revealed that, antioxidants drugs have definite role in the prevention of geriatric diseases.