Because atoms seek to reach a state of maximum stability, an atom will try to fill its shell with electrons by: Gaining or losing electrons to either fill or empty its outer shell Sharing its electrons by bonding together with other atoms in order to complete its outer shell Free Radicals: The Formation The free radicals are formed when weak bonds between atoms are split. Free radicals cause a chain reaction of "electron stealing" because the minute they start taking away electrons from other molecules, those molecules become free radicals themselves. Massive destruction ensues, leading to such disorders as Alzheimer's, cardiovascular disease, cancer, senility, and more. With the possible exception of longevity medicine, antioxidant antiaging is one of the fastest growing segments of medicine. How antioxidant antiaging works As you process food for energy, your body produces substances that are highly unstable. The process is called oxidation and the substance produced is called "free radicals. A recent food Olympics has been conducted and out of the 100 different varieties of foods, vegetables, and nuts, 20 antioxidant rich foods came out at the top. This list of foods contained most of the very rich antioxidant foods as ranked by nutrition scientists at the US Department of Agriculture (USDA) and reported by the University of Alabama website on November 1, 2004. Antioxidants protect the body from harmful, excess free radicals, sweeping them up before they can cause damage. These days, when we talk about antioxidants, the first thing that comes to people's minds is "supplements." However, studies on antioxidant supplements are for the most part inconclusive and so far, no one study has come up with the same results during antioxidant supplements tests. Antioxidants are natural enemies of free radicals because one of their functions is to break the chain reaction and destroy free radicals. Therefore, while antioxidants can be found in many fresh fruits and vegetables, it still pays to take antioxidant dietary supplement along with your food. Vitamin C antioxidant dietary supplement is perhaps the most famous form of antioxidant available.