Boosting your immune system may be easier than you might think. The most important thing you can do to help maintain a healthy and strong immune system is engage in healthy habits. Here are some immune booster tips for signs of a strong immune system. One such healthy habit is getting enough sleep. Most adults should aim for getting between 7 to 9 hours of sleep a night. Studies have shown that people who don't get adequate sleep are more likely to get sick after being exposed to a virus, and may recover more slowly than their more well-rested peers. In addition, eating a healthy, well-balanced diet that delivers nutrients to your body may help give your immune system a boost and may help you fend off viruses more effectively than people who don't eat well. In addition to healthy habits like getting enough sleep and eating well, some people choose to take immune support vitamins and supplements.