Aging is the progressive decline over time in physiological functions, including reflexes, vision, hearing, short-term memory and learning, physical strength and endurance, digestion, cardiovascular function and immunity. Two well-supported theories have been proposed to explain the biological cause of aging.
Based on recent scientific findings, a revolutionary theory called free radical theory of aging has been developed to describe the roles of oxidative damages to cells in the process of aging. The theory hypothesizes that oxidative damage by free radicals to genetic materials, proteins, cell membranes, and other cellular machineries is the genesis of aging and its consequences. According to the theory, free radical damage to our cells accumulates but our inborn ability to resist and repair the damage with antioxidants and enzymes declines as we age, resulting in chemical disintegration of our bodies, increased risk of age-related diseases, and eventually death. Therefore, the battle between free radicals and antioxidants in the body is a major factor determining aging rate and life span.
Based on recent scientific findings, a revolutionary theory called free radical theory of aging has been developed to describe the roles of oxidative damages to cells in the process of aging. The theory hypothesizes that oxidative damage by free radicals to genetic materials, proteins, cell membranes, and other cellular machineries is the genesis of aging and its consequences. According to the theory, free radical damage to our cells accumulates but our inborn ability to resist and repair the damage with antioxidants and enzymes declines as we age, resulting in chemical disintegration of our bodies, increased risk of age-related diseases, and eventually death. Therefore, the battle between free radicals and antioxidants in the body is a major factor determining aging rate and life span.
Detail: Aging and Foods
