You’ve probably heard before that you shouldn’t stay out too long in the cold because you can catch a cold. From what we hear during our childhood, many of us believe that cold weather is cause for illness. This, however, is a misconception. Cold weather itself isn’t directly responsible for causing people to get sick. It is true that colds and viruses are seasonal, with increased risk during the fall and winter. This is important to understand because it allows us to take precautions during these months. The science still isn’t entirely clear why viruses are seasonal, but there are some pretty good theories to explain it.