X. Summary

Aging is a natural process, no one can stop but delay it. Over last 20+ years, researchers found that free radicals have played a majors role in the progression of aging process as they damage every cells of the whole body. One of the majoy cause of free radical is that of setting a chain reaction, if left unchecked, it can cause death of the cells, triggering the attack to the adjacent cells. At the middle age, due to weakened immune system, damage of body organs and reduced levels of antioxidants, our health is deteriorate and aging progressed at a fast rate, it is up to you to delay it by eating healthy, living a healthy style, exercise, etc. if you want to look younger than you biological age, live longer, healthier and diseases free.