Antioxidants are natural substances that help protect our bodies from damage caused by harmful molecules called free radicals. Free radicals can come from various sources, such as pollution, UV rays from the sun, and even the food we eat. By neutralizing these free radicals, antioxidants play a crucial role in maintaining our overall health and reducing the risk of chronic diseases. Common sources of antioxidants include fruits and vegetables, especially those rich in vitamins C and E, like oranges and spinach. Other sources include nuts, seeds, and dark chocolate. Incorporating these foods into our diet can help boost our antioxidant levels and support our body's defense system.