{"id":97345,"date":"2026-10-21T15:46:32","date_gmt":"2026-10-21T19:46:32","guid":{"rendered":"https:\/\/noti-america.com\/site\/principal\/?p=97345"},"modified":"2026-10-21T15:46:32","modified_gmt":"2026-10-21T19:46:32","slug":"por-que-el-frio-no-provoca-resfrios-pero-puede-intensificar-infecciones-respiratorias","status":"publish","type":"post","link":"https:\/\/noti-america.com\/site\/principal\/2026\/10\/21\/por-que-el-frio-no-provoca-resfrios-pero-puede-intensificar-infecciones-respiratorias\/","title":{"rendered":"Por qu\u00e9 el fr\u00edo no provoca resfr\u00edos pero puede intensificar infecciones respiratorias"},"content":{"rendered":"<p>NOTI-AMERICA.COM | CHILE<\/p>\n<p style=\"text-align: justify\">Un d\u00eda la temperatura supera los 20\u00b0 con un sol radiante y al siguiente regresan las nubes, la lluvia y el fr\u00edo.<\/p>\n<p style=\"text-align: justify\">Esta inestabilidad clim\u00e1tica, habitual en gran parte del pa\u00eds debido al fen\u00f3meno de El Ni\u00f1o, no solo complica la elecci\u00f3n diaria del vestuario, sino que tambi\u00e9n desencadena un aumento notable en las consultas por infecciones respiratorias y resfr\u00edos.<\/p>\n<p style=\"text-align: justify\" data-path-to-node=\"5\">Ante esta realidad, surge una duda frecuente:<strong> \u00bflos cambios bruscos de temperatura nos enferman directamente?<\/strong><\/p>\n<div class=\"banner-full\" style=\"text-align: justify\"><\/div>\n<h3 style=\"text-align: justify\" data-path-to-node=\"6\">C\u00f3mo reacciona el organismo al clima<\/h3>\n<p style=\"text-align: justify\" data-path-to-node=\"7\"><strong>Noelia Barrera P\u00e1ez<\/strong>, mag\u00edster y docente de la Facultad de Enfermer\u00eda de la Universidad Andr\u00e9s Bello (UNAB), aclara que los cambios de temperatura por s\u00ed solos no generan enfermedades virales como la influenza, el resfr\u00edo com\u00fan o el COVID-19, ni tampoco reducen de forma <strong>generalizada las defensas del cuerpo.<\/strong><\/p>\n<blockquote class=\"\" data-path-to-node=\"8\">\n<p data-path-to-node=\"8,0\"><strong>\u201cEl cuerpo regula su temperatura mediante un proceso denominado termorregulaci\u00f3n, coordinado principalmente por el hipot\u00e1lamo.<\/strong> Ante el fr\u00edo, los vasos sangu\u00edneos de la piel se contraen para reducir la p\u00e9rdida de calor y pueden aparecer escalofr\u00edos. En ambientes calurosos, en cambio, el organismo favorece la eliminaci\u00f3n de calor mediante la sudoraci\u00f3n y la dilataci\u00f3n de los vasos sangu\u00edneos\u201d, explica la acad\u00e9mica.<\/p>\n<\/blockquote>\n<p style=\"text-align: justify\" data-path-to-node=\"9\"><strong>Sin embargo, las condiciones ambientales s\u00ed facilitan los contagios.<\/strong> <b data-path-to-node=\"9\" data-index-in-node=\"69\">El aire fr\u00edo y seco irrita las v\u00edas respiratorias y altera sus mecanismos de defensa locales<\/b>. Adem\u00e1s, durante las jornadas fr\u00edas la poblaci\u00f3n tiende a permanecer m\u00e1s tiempo en espacios cerrados y con poca ventilaci\u00f3n, un escenario propicio para la circulaci\u00f3n de virus. En personas con asma o Enfermedad Pulmonar Obstructiva Cr\u00f3nica (EPOC), el aire fr\u00edo puede desencadenar broncoespasmos incluso sin una infecci\u00f3n previa.<\/p>\n<h3 style=\"text-align: justify\" data-path-to-node=\"11\">Grupos de mayor riesgo y precauciones<\/h3>\n<p style=\"text-align: justify\" data-path-to-node=\"12\">Aunque la adaptaci\u00f3n t\u00e9rmica es un proceso natural, la exposici\u00f3n prolongada a extremos de fr\u00edo o calor exige un esfuerzo adicional que resulta cr\u00edtico en poblaciones vulnerables:<\/p>\n<div class=\"banner-full\" style=\"text-align: justify\"><\/div>\n<ul style=\"text-align: justify\" data-path-to-node=\"13\">\n<li>\n<p data-path-to-node=\"13,0,0\"><strong>Lactantes y ni\u00f1os menores de 2 a\u00f1os<\/strong><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">:<\/b> tienen un sistema de termorregulaci\u00f3n menos eficiente y las infecciones pueden evolucionar con rapidez.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,1,0\"><strong>Personas mayores:<\/strong> presentan menor capacidad de adaptaci\u00f3n t\u00e9rmica. El fr\u00edo incrementa la vasoconstricci\u00f3n y la carga de trabajo del coraz\u00f3n, lo que puede agravar cuadros de hipertensi\u00f3n, insuficiencia card\u00edaca o cardiopat\u00edas.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,2,0\"><strong>Pacientes cr\u00f3nicos e inmunocomprometidos<\/strong><b data-path-to-node=\"13,2,0\" data-index-in-node=\"0\">:<\/b> requieren seguimiento estricto de sus tratamientos m\u00e9dicos sin realizar modificaciones por cuenta propia.<\/p>\n<\/li>\n<\/ul>\n<h3 style=\"text-align: justify\" data-path-to-node=\"15\">Recomendaciones pr\u00e1cticas para la prevenci\u00f3n<\/h3>\n<p style=\"text-align: justify\" data-path-to-node=\"16\">Para aminorar el impacto de los vaivenes del tiempo, la especialista de la UNAB entrega las siguientes medidas fundamentales:<\/p>\n<div class=\"banner-full\" style=\"text-align: justify\"><\/div>\n<ol start=\"1\" data-path-to-node=\"17\">\n<li style=\"text-align: justify\">\n<p data-path-to-node=\"17,0,0\"><strong>Estrategia al vestir:<\/strong> Vestirse en capas para adaptar la ropa seg\u00fan var\u00ede la temperatura durante el d\u00eda, evitando tanto el enfriamiento como el sobreabrigo.<\/p>\n<\/li>\n<li style=\"text-align: justify\">\n<p data-path-to-node=\"17,1,0\"><strong>H\u00e1bitos de higiene y ventilaci\u00f3n:<\/strong> Ventilar diariamente los espacios cerrados, lavarse las manos con frecuencia, cubrirse al toser o estornudar y usar mascarilla si existen s\u00edntomas respiratorios.<\/p>\n<\/li>\n<li style=\"text-align: justify\">\n<p data-path-to-node=\"17,2,0\"><strong>Cuidado infantil:<\/strong> Promover la lactancia materna, mantener ambientes libres de humo, asistir a los controles al d\u00eda y cumplir con el calendario de vacunaci\u00f3n.<\/p>\n<\/li>\n<li style=\"text-align: justify\">\n<p data-path-to-node=\"17,3,0\"><strong>Protecci\u00f3n a adultos mayores:<\/strong> Mantener una temperatura ambiental confortable, utilizar calefacci\u00f3n segura y realizar un acompa\u00f1amiento frecuente a quienes viven solos.<\/p>\n<\/li>\n<li>\n<p style=\"text-align: justify\" data-path-to-node=\"17,4,0\"><strong>Vacunaci\u00f3n al d\u00eda:<\/strong> Mantener las inmunizaciones indicadas por el Ministerio de Salud (Influenza, COVID-19, Neumococo y la inmunizaci\u00f3n contra el Virus Respiratorio Sincicial &#8211; VRS en lactantes elegibles).<\/p>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>NOTI-AMERICA.COM | CHILE Un d\u00eda la temperatura supera los 20\u00b0 con un sol radiante y al siguiente regresan las nubes, la lluvia y el fr\u00edo. Esta inestabilidad clim\u00e1tica, habitual en gran parte del pa\u00eds&#46;&#46;&#46;<\/p>\n","protected":false},"author":133,"featured_media":97346,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"_acf_changed":false,"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"no","rop_publish_now_accounts":{"facebook_10219548024599422_1632221337088128":"","twitter_242054905_242054905":""},"rop_publish_now_history":[{"account":"twitter_242054905_242054905","service":"twitter","timestamp":1792612007,"status":"error"}],"rop_publish_now_status":"done","footnotes":""},"categories":[3709],"tags":[],"class_list":["post-97345","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-bienestar","post_format-post-format-image"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.9 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Por qu\u00e9 el fr\u00edo no provoca resfr\u00edos pero puede intensificar infecciones respiratorias - Noti-America.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/noti-america.com\/site\/principal\/2026\/10\/21\/por-que-el-frio-no-provoca-resfrios-pero-puede-intensificar-infecciones-respiratorias\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Por qu\u00e9 el fr\u00edo no provoca resfr\u00edos pero puede intensificar infecciones respiratorias\" \/>\n<meta property=\"og:description\" content=\"NOTI-AMERICA.COM | CHILE Un d\u00eda la temperatura supera los 20\u00b0 con un sol radiante y al siguiente regresan las nubes, la lluvia y el fr\u00edo. 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