" This was according to Denham Harman, M.D., Ph.D., who first proposed the theory in the 1950s. Since then, scientists and researchers have sought to understand the body's oxidation process and free radicals contribute in its acceleration. It seemed that these so-called free radicals are rogue oxygen molecules that are highly unstable and which have harmful effects to the body. These byproducts, called free radicals, are highly reactive substances that may cause damage to cells. The antioxidant substances found in antioxidant fruits may work to neutralize these free radicals and in the process prevent them from causing damage. Antioxidant Fruits: The Benefits Many people are already familiar with antioxidant fruits, such as citrus fruits which are known for their high vitamin C content or apples for their beta-carotene. Based on their findings, scientists say that by the time you are 20 years old, most of the cells that make up your body have already used up half of their available cell divisions in their cell lifespan. That means by the time you are 40, your cells may only have 30 per cent of cell divisions left. This is actually the reason behind the physical changes that goes on not only inside but outside the body as you approach your years. Free radicals contain an odd, unpaired electron which causes them to be very unstable and react quickly with other compounds. Because it is the nature of free radicals, which is basically an atom with an unpaired electron, to achieve stability, they will try to do so by capturing the needed electron from other molecules. The Effects of Antioxidant Juice The only way for the body to defend itself from free radicals is through antioxidants. Unfortunately, human beings are one of the few animal species that do not produce their own antioxidants. That is why we depend so much on our diet for our source of antioxidants. In the study about antioxidant juice from pomegranates, researchers have found that the substance can effectively reverse the progression of atherosclerosis, or the hardening of the arteries. Antioxidant supplements have been available for years now and while they can't substitute for a healthy diet and lifestyle, they do play a role in reinforcing your overall health and resilience. It is best to take antioxidant supplements in the form of combination products. Multiple antioxidants tend to work synergistically and far more effectively when they are taken together than when they are taken as a single antioxidant.