First, Exercise several times a week. We've stressed the "get fit" part already, but now we want to make it a little less ignorable. Your daily routine needs to include exercise. It will increase your metabolic rate, control your weight and you'll feel fresh the whole week. Next, get a good night's rest. When you sleep, your body produces cells that fight infection, inflammation, and stress which means that getting too little sleep or poor-quality sleep not only makes you more prone to getting sick, but also increases the time you need to recover from illness. If you're not sleeping for you, sleep for your health!