Flu season is used to be happened from October to May in various part of countries around the world, and the virus affects people of all different age groups each year. Flu symptoms include coughing, runny nose, fever, chills, body aches, and headache. Symptoms can be mild or severe and typically last from one to two weeks. Some virus disease will take a long time to cure. People says, someone who catches colds and other illnesses easily is likely to have a weaker immune system. If you want to try and avoid developing a common cold, the flu or another illness, it forces to think about how you can keep your immune system ready for action. But maintaining a healthy diet to help boost your immune system may also give you an edge. To maintain good health, efficient immune system is the key factor. It acts like defending army. Here are, some of specific natural ways to boost your immune system, fight germs and live a healthy life.