A Stubborn Myth Debunked
It’s an idea that has been circulating for generations: if you go outside in the cold without a coat, you will get sick. Many people associate the winter months with a higher chance of catching a cold and point to the chilly weather as the culprit. But is that really justified? Let’s dissect this myth and understand why cold is not the direct cause of a cold.
What actually causes a cold?
A cold is caused by viruses, such as the rhinovirus, that infect the upper respiratory tract. So it’s not the outdoor temperature, but exposure to these viruses that determines whether you become ill. Cold viruses spread via droplets in the air, direct contact with contaminated surfaces or hands, and then touching your face.
Why do we seem to get colds more often in winter?
While the weather itself is not the cause, there are indirect factors that contribute to the rise in colds during the colder months:
- More time indoors: In winter, people spend more time in poorly ventilated spaces close together, which increases the chance that viruses spread.
- Dry air: Cold air, especially when heated indoors, is drier. Dry air can dry out the mucous membranes in your nose, making them less effective at repelling viruses.
- Reduced resistance: Some studies suggest that the body may become more susceptible to infections at low temperatures, for example due to reduced blood flow to the mucous membranes.
What is the origin of the myth?
The link between cold and illness probably dates back to times when people had less knowledge of microbiology. A wet coat or chilled fingers seemed logically linked to developing symptoms such as sneezing and coughing. Moreover, old sayings like “you must dress warmly, otherwise you’ll get sick” reinforced the idea that cold is directly responsible for illness.
How can you truly prevent a cold?
The best thing you can do to avoid a cold is to prevent the spread of viruses. Here are some tips:
- Wash your hands regularly with soap and water, especially after contact with high‑traffic places.
- Avoid touching your face, especially your nose, mouth and eyes.
- Ventilate your house to increase humidity and let fresh air in.
- Stay healthy by getting enough sleep, eating healthily and exercising regularly. A well-functioning immune system helps you defend better against viruses.
Conclusion
While it’s understandable that cold weather and colds are linked, it’s important to remember that cold itself does not create viruses. The rise in colds during winter is more due to behavioral and environmental factors. By being aware of how cold viruses spread, you can protect yourself better — regardless of the temperature outside. So wear a warm coat to stay comfortable, but know that it does not directly prevent or cause you to become ill.
