{"id":94668,"date":"2025-12-26T18:56:59","date_gmt":"2025-12-26T18:56:59","guid":{"rendered":"https:\/\/www.africa-press.net\/south-africa\/all-news\/study-reveals-ways-to-protect-noses-from-colds"},"modified":"2025-12-26T19:21:36","modified_gmt":"2025-12-26T19:21:36","slug":"study-reveals-ways-to-protect-noses-from-colds","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/south-africa\/all-news\/study-reveals-ways-to-protect-noses-from-colds","title":{"rendered":"Study Reveals Ways to Protect Noses from Colds"},"content":{"rendered":"

Africa-Press – South-Africa. <\/strong><\/span>Catching a cold is not just an outdated expression. Research indicates that the warmer the nose \u2013 the less the chance to get ill. Nasal cells can effectively attack and destroy viruses and bacteria when they are warmed up.<\/p>\n

Warm noses are better at fighting infections, research published in the peer-reviewed Journal of Allergy and Clinical Immunology has shown.<\/p>\n

Experts indicated that for a long time, cold weather was associated with respiratory infections. However, the exact explanation had eluded researchers. As a possible explanation, scientists theorized that people more often gather inside during chilly weather and viruses survive better in low-humidity indoor air. However, it was unclear whether cold weather itself makes organisms more susceptible to infections.<\/p>\n

In 2018, researchers discovered that cells in the nose produce so-called \u201cextracellular vesicles\u201d that attack and destroy bacteria.<\/p>\n

\u201cThe best analogy that we have is a hornet\u2019s nest,\u201d Mansoor Amij, a pharmaceutical sciences professor at Northeastern University and one of the authors of the paper, said.<\/p>\n

Like hornets, \u201cextracellular vesicles\u201d attack and destroy their biological enemy.<\/p>\n

Scientists decided to carry on with further research and clarify whether \u201cextracellular vesicles\u201d would also attack and destroy viruses like they attack and destroy bacteria. They took pieces of nasal mucosa from volunteers who came to delete polyps in the nose. They used a test substance that mimicked viral infection. The experiment indicated that \u201cextracellular vesicles\u201d successfully attack and destroy viruses.<\/p>\n

Also, they wanted to shed some light on the question of whether the temperature has some impact on the ferocity of \u201cextracellular vesicles’\u201d response. In order to do this, they cultivated nasal cells under different temperatures \u2013 one under 37 degrees Celsius and the other under 32C. Under regular body temperature conditions (up to 37C) \u201cextracellular vesicles\u201d were able to successfully destroy viruses. However, under reduced temperatures, fewer \u201cextracellular vesicles\u201d were produced and the attacks on viruses were less fierce.<\/p>\n

This exactly explains why we \u201ccatch a cold\u201d.<\/p>\n

\u201cThere\u2019s never been a convincing reason why you have this very clear increase in viral infectivity in the cold months,\u201d said another author Benjamin Bleier, a surgeon at Harvard Medical School.<\/p>\n

Researchers expect that their findings will help fight viruses, possibly including flu and even Covid.<\/p>\n

For More News And Analysis About South-Africa<\/span> Follow Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – South-Africa. Catching a cold is not just an outdated expression. Research indicates that the warmer the nose \u2013 the less the chance to get ill. Nasal cells can effectively attack and destroy viruses and bacteria when they are warmed up. Warm noses are better at fighting infections, research published in the peer-reviewed Journal […]<\/p>\n","protected":false},"author":84,"featured_media":94667,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,9],"tags":[275],"class_list":["post-94668","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-miscellaneous","tag-south-africa-2"],"yoast_head":"\nStudy Reveals Ways to Protect Noses from Colds - South Africa<\/title>\n<meta name=\"description\" content=\"Catching a cold is not just an outdated expression. 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