Try and be active
One of the best ways to stay fit and healthy and fight off unwanted infections is exercise. The benefits of exercise are well known and well documented: it improves your overall health and well-being and strengthens your immune system, which makes you less susceptible to illness. And if you do get sick, your body is better able to fight off the infection and more quickly get you back on your feet. It isn’t foolproof, of course, because fit people still get sick, but in general the fitter you are, the better your body will be at shrugging off that annoying bug or illness.