Does Cold Weather Make you Sick?

Cold weather doesn’t make us sick, but we do get sick more in cold weather

We are more likely to get sick in the winter so naturally people think that cold weather makes us sick. I hear it all of the time in the office, parents think that being outside in the cold, or getting wet in the rain, has caused their child’s illness. However, the reason we get typical winter illnesses is because of germs. Colds are caused by viruses. The flu is caused by the influenza virus. Pneumonia, ear infections, and sinusitis are caused by either viruses or bacteria. So why do we get these more in the winter? Let’s start with the myth.

What is an old wive’s tale?

Many myths exist in medicine. Most of these are old wive’s tales passed down from generation to generation. Your mom probably told you not to go out without a coat or not to go outside with wet hair. This was likely told to her by her mother! As I mentioned in Healthline, my assumption is that this myth, cold weather makes you sick, probably stems from the fact that we not only get sick more in the winter, but we also feel sick when we are cold. Shivering and feeling achy is typical in both cold weather and with an illness.

Why do we get sick more in the winter?

Winter viruses, especially influenza, thrive in cold and dry conditions. They will linger longer in the air making it more likely they can infect someone. Furthermore, we spend more time indoors when the weather is bad. This closer proximity to each other increases the likelihood that germs in the air will be passed from person to person.

There is also the theory that our immune system does not work as well in the winter. Less sunlight means less activated vitamin D. Vitamin D plays an important role in keeping our immune system functioning optimally.

What is the best way to avoid getting sick?

It’s ok to go out in the rain, that’s not how you get sick.

Parent’s don’t need to stress about making their kids wear a coat or avoid going out in the rain. What they do need to do is stress the importance of good and effective hand washing. Teach kids to wash their hands with soap and water for 20-30 seconds and cough or sneeze into their elbows. This keeps the hands germ free. Parents should also make sure that their kids are getting good sleep, good nutrition and good exercise. Finally, don’t forget about getting flu shots for everyone who is eligible.

If you have any concerns about your child or your child’s illness, make sure to talk to your pediatrician.

Check out Dr. Friedman on Fox 5 San Diego talking about preventing the spread of germs.