You don’t get enough sleep
While you’re asleep, your body ramps up the part of your immune system that learns the best ways to attack new bacteria, viruses, and other triggers. If you aren’t getting enough sleep, though, your body doesn’t have the chance to fight diseases as effectively, according to a study in European physiology journal Pflugers Archiv. Just six days of restricted sleep could prevent your body from using a vaccination effectively, and other studies have shown lack of sleep makes it harder to kick a cold. Aim for seven or eight hours a night to keep your immune system at its prime. Here, sleep doctors debunk sleep myths you still believe.
You sit all day
Lack of exercise could make you sicker longer. Upper respiratory tract infections lasted 42 percent longer in volunteers who worked out once a week or less than in those who did aerobic exercises five or more times a week, according to a study in the British Journal of Sports Medicine. The sedentary participants also had more severe symptoms. Squeeze in moderate exercise every day, like taking a quick walk during your lunch hour. Here’s more on how to recover from a day of sitting.