Asthma and Cold Weather
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Cold weather offers additional challenges for people with asthma and respiratory ailments. With good preventative measures, proper medication and protection against cold asthmatics can still walk outside in the winter cold. The cold alone is often not the biggest problem. Particle pollution caused by cold weather, especially in cities and towns will often exacerbates asthma. Frequent colds during the winter months will also help to improve symptoms. Asthma is a disease with many forms of presentation, but most will feel uncomfortable in cold weather. It is important to be careful with strenuous exercise in very cold weather (<10 ° C).
The reason that many people with asthma gets worse when they breathe in cold air, caused by over-sensitive airways and not the cold allergy. The cold air drivers indirectly to the drying of the airways and thus narrowing. In very cold weather are also more difficult to breathe through the nose. People with asthma causes breathing by mouth to further narrowing of the airways because the air does not have time to get warm before it reaches the airways.
The nose has a very important role in protecting the airways against untreated air and it has been shown that the size of the nose affecting the ability to breathe through the nose. To live in very cold climates (Greenland) can be difficult, and studies have shown that they have a higher nose caves than many other ethnic groups!
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