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Does Cold Weather Cause the Cold or Flu?

By Kristina Duda, R.N., About.com

Created: December 3, 2006

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Sick Child

Centers for Disease Control and Prevention, US Government

Question: Does Cold Weather Cause the Cold or Flu?

This question has probably been asked since the first time the flu made someone sick. After all, cold and flu season occurs when the weather is cold, so there must be a connection, right? Well, not quite. No matter how many times your mother and grandmother told you not to go out in the cold because you would catch a cold or the flu, it just doesn’t work that way.

Answer:

The truth is, the flu and the common cold are caused by viruses. People get sick more often in the winter because they are exposed to each other more in the winter than in the summer. When it is cold outside, people tend to stay inside and are more likely to spread germs to one another. Also, because school is in session, kids are around each other all day and are not afraid to share their germs. With so many people in such close contact, the likelihood of passing germs is much higher when it is cold outside than when it is warm and people are outdoors.

In tropical areas, where it does not get cold, the common cold and flu season generally occurs during the rainy season. But again, these illnesses are not caused by the rain. They are just more prevalent because people come in closer contact with each other than they do during the dry season.

The most important thing to remember during cold and flu season is to remember to protect yourself against these germs when you are around other people. Viruses are passed by contact between people, so be sure to wash your hands often.

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