Free radicals is not the name of a sixties band, but the evil compounds in your body that attack healthy cells causing damage that can adversely affect your long-term health. They can damage LDL cholesterol making the already bad cholesterol worse. They can even damage our DNA. Antioxidants to the rescue. They can neutralize these cell damaging free radicals and send them on their way.
Fruits and vegetables are loaded with antioxidants -just another reason why we need 7-19 servings a day.