The first is to be mindful of what you eat. There are certain food types that are fantastic for the immune system, and help to battle viruses. Foods rich in fatty Mega-3 acids, such as fish, nuts, and oils like flaxseed, are a good place to start. So is dairy, like milk and yogurt.

Another obvious, but often neglected, one is to wash your hands, and not just before meals, or after using the restroom. Wash up after going out, during work, and any time you come into contact with someone who is showing signs of being ill. This is the best tip to fighting off the flu.

Finally, get a lot of fresh air. This means taking walks, playing in the park, going on hikes, or even just opening up the windows to your home and office. Stagnant air will often carry viruses for long periods of time.