Want to catch a cold less often? Keep your nose warm

According to a new study by Yale University experts, the word cold is not so vague! Because the cold affects the immune system. Your nose usually starts to turn red and cold when you walk in cold weather. This is the first and most common cause of colds, so keep your nose warm as long as you can.

Rhino virus, the most common cause of colds that are frozen in the nose, spreads more easily and more easily. Experiments by experts at Yale University show that rhinovirus grows and multiplies at a temperature of 33 degrees much better than the normal body temperature of 37 degrees. This is because cold weather weakens the immune system’s antiviral response, and rhinovirus has a better chance of multiplying in the nose.

According to Dr. Akiko Iwasaki, one of the experts in this study, we have known for 50 years that the virus multiplies more in the nose, but the details have never been explained in detail. A cold nose weakens the immune system and gives the virus a chance to grow and multiply. The lower the temperature, the less the immune system reacts to the virus, which explains why the virus causes more disease in the cold season than in the hot season.

Complex conditions of a virus

However, Iwasaki emphasizes that the full explanation for this phenomenon is much more complex and depends on other factors, including individual behavior during the hot and cold months. According to Iwasaki, in order to avoid colds, you can always live in hot and tropical climates or prevent very cold weather from reaching your nose.

We know that the temperature of the cells that line the inside of the nose is lower than other parts of the body that are exposed to the cold. This may explain why rhinovirus, unlike viruses, causes more colds than lung infections, and in fact, warm lung temperature is not suitable for rhinovirus, which prefers nasal air.

Experts say the study shows well that temperature changes affect immune function and can explain why some diseases, such as pediatric asthma , are more common in cold weather.