Free radicals, antioxidants, and co-factors play a crucial role in maintaining health, aging, and age-related diseases. Free radicals cause oxidative stress, which is counteracted by the body's endogenous antioxidant systems and exogenous antioxidants. Excessive free radical production can lead to oxidative damage, contributing to aging and chronic diseases such as cardiovascular disease, cancer, and neurodegenerative disorders. As the global population ages, the prevalence of these diseases is expected to rise, increasing the burden on healthcare systems. To achieve healthy aging, individuals should adopt lifestyles rich in antioxidants. Free radicals are reactive species with unpaired electrons, primarily reactive oxygen species (ROS), generated through various mechanisms including metabolic processes, inflammation, and environmental factors. ROS can damage cellular components, leading to oxidative stress. Antioxidants, both endogenous and exogenous, help neutralize free radicals and reduce oxidative damage. Enzymatic antioxidants like glutathione peroxidase, catalase, and superoxide dismutase, along with non-enzymatic antioxidants such as vitamins C and E, melatonin, carotenoids, and flavonoids, play essential roles in protecting cells from oxidative damage. Free radicals are implicated in aging and age-related diseases, including cardiovascular disease, stroke, neurodegenerative disorders, and cancer. Antioxidants can mitigate oxidative stress and reduce the risk of these diseases. Dietary antioxidants, such as those found in the Mediterranean diet, have been shown to lower the risk of chronic diseases. Studies indicate that antioxidants like vitamin C, vitamin E, and flavonoids can reduce oxidative damage, improve vascular function, and lower the risk of cardiovascular disease. Antioxidants also play a role in preventing neurodegenerative diseases such as Alzheimer's and Parkinson's by reducing oxidative stress and protecting neurons. Antioxidants are essential for maintaining health and preventing age-related diseases. A diet rich in antioxidants, including fruits, vegetables, and other natural sources, can help reduce oxidative stress and promote healthy aging. The role of antioxidants in disease prevention is supported by numerous studies, highlighting their importance in maintaining cellular health and reducing the risk of chronic diseases.Free radicals, antioxidants, and co-factors play a crucial role in maintaining health, aging, and age-related diseases. Free radicals cause oxidative stress, which is counteracted by the body's endogenous antioxidant systems and exogenous antioxidants. Excessive free radical production can lead to oxidative damage, contributing to aging and chronic diseases such as cardiovascular disease, cancer, and neurodegenerative disorders. As the global population ages, the prevalence of these diseases is expected to rise, increasing the burden on healthcare systems. To achieve healthy aging, individuals should adopt lifestyles rich in antioxidants. Free radicals are reactive species with unpaired electrons, primarily reactive oxygen species (ROS), generated through various mechanisms including metabolic processes, inflammation, and environmental factors. ROS can damage cellular components, leading to oxidative stress. Antioxidants, both endogenous and exogenous, help neutralize free radicals and reduce oxidative damage. Enzymatic antioxidants like glutathione peroxidase, catalase, and superoxide dismutase, along with non-enzymatic antioxidants such as vitamins C and E, melatonin, carotenoids, and flavonoids, play essential roles in protecting cells from oxidative damage. Free radicals are implicated in aging and age-related diseases, including cardiovascular disease, stroke, neurodegenerative disorders, and cancer. Antioxidants can mitigate oxidative stress and reduce the risk of these diseases. Dietary antioxidants, such as those found in the Mediterranean diet, have been shown to lower the risk of chronic diseases. Studies indicate that antioxidants like vitamin C, vitamin E, and flavonoids can reduce oxidative damage, improve vascular function, and lower the risk of cardiovascular disease. Antioxidants also play a role in preventing neurodegenerative diseases such as Alzheimer's and Parkinson's by reducing oxidative stress and protecting neurons. Antioxidants are essential for maintaining health and preventing age-related diseases. A diet rich in antioxidants, including fruits, vegetables, and other natural sources, can help reduce oxidative stress and promote healthy aging. The role of antioxidants in disease prevention is supported by numerous studies, highlighting their importance in maintaining cellular health and reducing the risk of chronic diseases.