{"id":29690,"date":"2026-04-24T10:34:03","date_gmt":"2026-04-24T08:34:03","guid":{"rendered":"https:\/\/agora.xtec.cat\/inslacetania\/?p=29690"},"modified":"2026-04-24T10:34:04","modified_gmt":"2026-04-24T08:34:04","slug":"la-seleccio-natural-ha-modelat-alguns-trets-humans","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inslacetania\/revista\/la-seleccio-natural-ha-modelat-alguns-trets-humans\/","title":{"rendered":"La selecci\u00f3 natural ha modelat alguns trets humans"},"content":{"rendered":"\n<p>Un estudi gen\u00e8tic liderat per la <strong>Universitat de Harvard <\/strong>revela com l\u2019evoluci\u00f3 humana s\u2019ha accelerat en els \u00faltims 10.000 anys, afavorint <strong>trets f\u00edsics<\/strong> i una millor <strong>resist\u00e8ncia a malalties<\/strong>.<\/p>\n\n\n\n<p>Una investigaci\u00f3 amb ADN de prop de <strong>16.000 individus<\/strong> d\u2019Europa i l\u2019Orient Mitj\u00e0 ha identificat 479 variants gen\u00e8tiques resultat de la selecci\u00f3 natural. Els resultats mostren que l\u2019evoluci\u00f3 s\u2019ha intensificat especialment des de <strong>l\u2019Edat de Bronze<\/strong>, coincidint amb canvis socials i ambientals.<\/p>\n\n\n\n<p>Entre els trets afavorits hi ha el cabell roig i la pell clara, que permeten produir vitamina D de manera m\u00e9s eficient en zones amb poca llum solar. Tamb\u00e9 s\u2019ha detectat una disminuci\u00f3 dels gens relacionats amb la <strong>calv\u00edcie<\/strong>.<\/p>\n\n\n\n<p>A m\u00e9s, la selecci\u00f3 natural ha millorat la <strong>immunitat<\/strong>: s\u2019han redu\u00eft gens associats a malalties com la <strong>tuberculosi<\/strong> o l\u2019<strong>esclerosi m\u00faltiple i<\/strong> han augmentat els relacionats amb la resist\u00e8ncia a infeccions<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un estudi gen\u00e8tic liderat per la Universitat de Harvard revela com l\u2019evoluci\u00f3 humana s\u2019ha accelerat en els \u00faltims 10.000 anys, afavorint trets f\u00edsics i una millor resist\u00e8ncia a malalties. Una investigaci\u00f3 amb ADN de prop de 16.000 individus d\u2019Europa i l\u2019Orient Mitj\u00e0 ha identificat 479 variants gen\u00e8tiques resultat de la selecci\u00f3 natural. Els resultats mostren [&hellip;]<\/p>\n","protected":false},"author":1510,"featured_media":29699,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[387,136,102],"tags":[],"class_list":["post-29690","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-curiositats","category-noticies","category-revista"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/posts\/29690","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/users\/1510"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/comments?post=29690"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/posts\/29690\/revisions"}],"predecessor-version":[{"id":29710,"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/posts\/29690\/revisions\/29710"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/media\/29699"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/media?parent=29690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/categories?post=29690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inslacetania\/wp-json\/wp\/v2\/tags?post=29690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}