Be active

"Excersise elevates core body temperature, which boosts your body's ability to fight viruses."

There's a link between moderate, regular exercise and a healthy immune system. Exercise temporarily increases the circulation of antibodies called macrophages—the cells that attack bacteria. Additionally, it elevates core body temperature, which boosts your body's ability to fight viruses. There are also indirect benefits, such as reduced stress, improved sleep (unless you exercise vigorously at night) and improved self-confidence through weight management. On the other hand, extended periods of intense training without adequate recovery time can weaken your immune system and increase your susceptibility to illness. It is also wise to cut back or cut out exercise when you are ill. That will give your immune system the best chance to fight an infection without the additional stress of exercise.