THE BOOK IS AVAILABLE AS AN ELECTRONIC FORMAT. IT WILL BE SEND TO YOUR EMAIL WITHIN 24 HOURS AFTER THE PAYMENT IS RECIEVED Discover 5 Steps To Avoid a Cold or The Flu and Increase Your Immunity. Your immune system is your number one defense mechanism against intruders such as bacteria or viruses that can make you very ill. It is imperative to make sure that you stay healthy throughout the year and put all the chances on your side to boost your immune system. To do so, here are five steps to help you avoid being sick with a cold or flu.