Antioxidant compounds are substances that prevent or delay oxidation, which is a chemical reaction that occurs when molecules in a living organism react with oxygen. This process can lead to cell damage and has been linked to aging and various diseases such as cancer and heart disease. Antioxidants work by neutralizing free radicals, which are unstable molecules that can cause oxidative stress and damage cells. They do this by giving up one of their electrons or by forming a complex with the free radical, thus preventing it from damaging other cells. Some common antioxidant compounds include vitamins A, C, and E, as well as flavonoids found in fruits and vegetables. Incorporating these foods into your diet can help to reduce oxidative stress and improve overall health.