1. Immune System2. Parts of Immune System3. Common disorder of Immune System- Allergic diseases- Autoimmune diseases4. Antioxidants- Definition- Source of antioxidants- Functions of antioxidants5. Some strategies for Keeping Healthy Living6. Plants used as Immune System Booster: Garlic Tulsi Papya Green Tea Carrots Spinach Ginseng Shilajeet Guduchi Capsicum Turmeric Ginger Amla Black pepper Lemon Orange Oregano Watermelon Apple Strawberry Blackberry Blueberry Liquirice and Sunflower seeds