{"id":29449,"date":"2025-01-21T10:40:44","date_gmt":"2025-01-21T08:40:44","guid":{"rendered":"https:\/\/www.previsorageneral.com\/?p=29449"},"modified":"2025-01-21T10:49:21","modified_gmt":"2025-01-21T08:49:21","slug":"per-que-tremoles-fred","status":"publish","type":"post","link":"https:\/\/www.previsorageneral.com\/ca\/per-que-tremoles-fred\/","title":{"rendered":"Per qu\u00e8 tremoles quan tens fred?"},"content":{"rendered":"<p>Les persones experimentem tremolor en situacions diverses: quan tenim por, quan realitzem exercici f\u00edsic intens, quan estem malalts, etc. Ara b\u00e9, t\u2019has preguntat mai perqu\u00e8 tremolem quan tenim fred? T\u2019ho expliquem!<\/p> <h2><strong>Una resposta del nostre mecanisme de defensa<\/strong><\/h2> <p>El tremolor que s\u2019activa quan tenim fred \u00e9s un moviment involuntari que dep\u00e8n de les estructures del nostre cervell. No obstant aix\u00f2, <strong>aquesta reacci\u00f3 \u00e9s l\u2019\u00faltima de les respostes del nostre cos<\/strong>, que abans ha passat per diverses fases diferents.<\/p> <h2><strong>L\u2019hipot\u00e0lem, el regulador de la temperatura corporal<\/strong><\/h2> <p>L\u2019hipot\u00e0lem, un petit \u00f2rgan del cervell, actua com a term\u00f2stat del nostre cos. \u00c9s per aix\u00f2 que, <strong>quan aquest detecta que ens est\u00e0 disminuint la temperatura corporal activa diversos mecanismes per posar-hi remei<\/strong>.<\/p> <ul> <li>Per comen\u00e7ar, <strong>l\u2019hipot\u00e0lem ordena moviments m\u00e9s o menys inconscients per produir calor<\/strong> com, per exemple, picar de peus a terra o fregar-se les mans. Aquests moviments musculars produeixen calor i molt sovint ens escalfen. Malgrat aix\u00f2, en casos de fred extrems, solen no s\u00f3n suficients.<\/li> <li>Si aquest primer pas no funciona, <strong>l\u2019hipot\u00e0lem mana al sistema circulatori que envi\u00ef menys sang a les extremitats<\/strong>, com les cames i els bra\u00e7os. Aix\u00f2 fa que s\u2019acumuli tota al sistema circulatori central, que permet mantenir una temperatura constant i estable dels \u00f2rgans vitals.<\/li> <li>A m\u00e9s, a aquests dos mecanismes se li suma un tercer: <strong>la tiroide secreta m\u00e9s hormones per augmentar el metabolisme general de l\u2019organisme<\/strong>, cosa que tamb\u00e9 genera calor.<\/li> <li>La tremolor \u00e9s, doncs, el quart i \u00faltim recurs, que arriba quan els altres tres mecanismes han estat insuficients. Aquesta s\u2019activa quan el c\u00f2rtex motor es veu superat jer\u00e0rquicament per generar calor. \u00c9s a dir, quan <strong>l\u2019hipot\u00e0lem se sobreposa al control i ordena que es produeixin contraccions musculars<\/strong>.<\/li> <\/ul> <p>Veiem, doncs, que aquest proc\u00e9s \u00e9s molt m\u00e9s complex del que ens pensem: el tremolor no arriba de cop i volta, sin\u00f3 que ho fa gradualment.<\/p> <p>Si aquest article ha estat del teu inter\u00e8s no dubtis a consultar la resta de <a href=\"https:\/\/www.previsorageneral.com\/ca\/blog\/\">blogs de Previsora General<\/a>!<\/p>","protected":false},"excerpt":{"rendered":"<p>Les persones experimentem tremolor en situacions diverses: quan tenim por, quan realitzem exercici f\u00edsic intens, quan estem malalts, etc. Ara b\u00e9, t\u2019has preguntat mai perqu\u00e8 tremolem quan tenim fred? T\u2019ho expliquem! Una resposta del nostre mecanisme de defensa El tremolor&hellip;<\/p>\n","protected":false},"author":1,"featured_media":29451,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[5674],"tags":[5727,70,5726],"post_series":[],"class_list":["post-29449","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-salut-3","tag-fred","tag-salut","tag-tremolors","entry","has-media"],"_links":{"self":[{"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/posts\/29449","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/comments?post=29449"}],"version-history":[{"count":5,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/posts\/29449\/revisions"}],"predecessor-version":[{"id":29458,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/posts\/29449\/revisions\/29458"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/media\/29451"}],"wp:attachment":[{"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/media?parent=29449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/categories?post=29449"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/tags?post=29449"},{"taxonomy":"post_series","embeddable":true,"href":"https:\/\/www.previsorageneral.com\/ca\/wp-json\/wp\/v2\/post_series?post=29449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}