{"id":39680,"date":"2022-07-06T04:28:57","date_gmt":"2022-07-06T11:28:57","guid":{"rendered":"https:\/\/www.chronobiology.com\/funcoes-do-melatonin\/"},"modified":"2022-07-20T00:12:21","modified_gmt":"2022-07-20T07:12:21","slug":"funcoes-do-melatonin","status":"publish","type":"page","link":"https:\/\/dev.chronobiology.com\/pt-br\/melatonin-chronobiology\/funcoes-do-melatonin\/","title":{"rendered":"Fun\u00e7\u00f5es do Melatonin"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row full_width=&#8221;stretch_row&#8221; el_class=&#8221;banner-top&#8221; css=&#8221;.vc_custom_1479389167421{background-image: url(https:\/\/www.chronobiology.com\/wp-content\/uploads\/2016\/11\/melatonin-tasks-banner.jpg?id=11670) !important;}&#8221;][vc_column][vc_custom_heading source=&#8221;post_title&#8221; font_container=&#8221;tag:h1|text_align:center&#8221; use_theme_fonts=&#8221;yes&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;melatoninfacts2&#8243;][vc_column][vc_column_text]<\/p>\n<h2 style=\"text-align: center;\">Fun\u00e7\u00f5es<\/h2>\n<p>A melatonina, tamb\u00e9m chamada &#8220;horm\u00f4nio-m\u00e3e da cronobiologia&#8221;, \u00e9 um horm\u00f4nio produzido principalmente pela gl\u00e2ndula pineal. Est\u00e1 presente nos seres humanos, nos animais, nas plantas e at\u00e9 mesmo em algas unicelulares e filogen\u00e9ticamente antigas, ou seja, datadas de h\u00e1 tr\u00eas bilh\u00f5es de anos. A melatonina regula o rel\u00f3gio biol\u00f3gico dos seres humanos como um horm\u00f4nio natural. Tamb\u00e9m \u00e9 chamado de &#8220;horm\u00f4nio da escurid\u00e3o&#8221; porque transmite informa\u00e7\u00f5es ao corpo, na forma de sinais hormonais, sobre a hora e a dura\u00e7\u00e3o da noite. Durante o dia, a produ\u00e7\u00e3o de melatonina \u00e9 quase zero. A produ\u00e7\u00e3o de melatonina ocorre atrav\u00e9s de um impulso do n\u00facleo supraquiasm\u00e1tico do hipot\u00e1lamo, que marca significativamente o ritmo circadiano. Se a retina do olho deixa de perceber luz azul suficiente, o n\u00facleo supraquiasm\u00e1tico \u00e9 informado e, por sua vez, transmite o impulso \u00e0 gl\u00e2ndula pineal para produzir melatonina. Desta forma, o horm\u00f4nio \u00e9 liberado na corrente sangu\u00ednea ciclicamente e de acordo com um ritmo definido, particularmente durante a noite, para sincronizar todo o organismo com a fase circadiana atual. Quando a retina pega a primeira luz do dia, a produ\u00e7\u00e3o de melatonina p\u00e1ra e a produ\u00e7\u00e3o de outros horm\u00f4nios, necess\u00e1rios para nos manter acordados, come\u00e7a em seu lugar. Este ciclo contribui para o ritmo circadiano de 24 horas de sono e despertar. Devido \u00e0s varia\u00e7\u00f5es da luz nas diferentes esta\u00e7\u00f5es, desenvolvemos ent\u00e3o um ritmo anual, al\u00e9m do ritmo circadiano (di\u00e1rio). Durante o inverno, a melatonina \u00e9 produzida e liberada na corrente sangu\u00ednea durante um per\u00edodo de tempo mais longo do que durante o ver\u00e3o.<\/p>\n<p>A melatonina tem uma meia-vida muito curta de cerca de 30 minutos. Vista a rapidez da sua decomposi\u00e7\u00e3o, precisa ser produzida constantemente durante toda a noite a fim de garantir um sono descansado (e muitos outros benef\u00edcios). Nos seres humanos com um ritmo circadiano saud\u00e1vel, os n\u00edveis de melatonina sobem rapidamente com a escurid\u00e3o e permanecem elevados a um n\u00edvel constante durante toda a noite at\u00e9 a primeira luz do amanhecer. Este elevado n\u00edvel de melatonina n\u00e3o s\u00f3 \u00e9 necess\u00e1rio para adormecer, mas tamb\u00e9m para aproveitar de um sono profundo e repousante. De manh\u00e3 cedo, o n\u00edvel de melatonina cai bruscamente novamente, para permitir que nosso organismo reaja \u00e0 condi\u00e7\u00e3o de luz crescente e assim desperte.<\/p>\n<p>O homem moderno \u00e9 o \u00fanico ser vivo que pode modificar os seus ritmos biol\u00f3gicos invertindo o dia e a noite. Como se isso n\u00e3o bastasse, com o avan\u00e7o da idade nossa capacidade de produzir melatonina durante as horas noturnas diminui. Como resultado, o sinal transmitido a cada parte do corpo torna-se mais fraco. Muitas vezes n\u00e3o \u00e9 ativado at\u00e9 bem depois da meia-noite. \u00c0 primeira luz do amanhecer, no entanto, a secre\u00e7\u00e3o de melatonina p\u00e1ra pontualmente. As pessoas mais velhas, portanto, s\u00e3o capazes de produzir o horm\u00f4nio do sono por um per\u00edodo mais curto e, em geral, seu organismo \u00e9 incapaz de fazer uso efetivo do mesmo.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row full_width=&#8221;stretch_row&#8221; el_class=&#8221;banner-top&#8221; css=&#8221;.vc_custom_1479389167421{background-image: url(https:\/\/www.chronobiology.com\/wp-content\/uploads\/2016\/11\/melatonin-tasks-banner.jpg?id=11670) !important;}&#8221;][vc_column][vc_custom_heading source=&#8221;post_title&#8221; font_container=&#8221;tag:h1|text_align:center&#8221; use_theme_fonts=&#8221;yes&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;melatoninfacts2&#8243;][vc_column][vc_column_text] Fun\u00e7\u00f5es A melatonina, tamb\u00e9m chamada &#8220;horm\u00f4nio-m\u00e3e da cronobiologia&#8221;, \u00e9 um horm\u00f4nio produzido principalmente pela gl\u00e2ndula pineal. Est\u00e1 presente nos seres humanos, nos animais, nas plantas e at\u00e9 mesmo em algas unicelulares e filogen\u00e9ticamente antigas, ou seja, datadas de h\u00e1 tr\u00eas bilh\u00f5es de anos. A melatonina [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":39681,"parent":39720,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"full-width-content","footnotes":""},"categories":[194,192],"class_list":{"0":"post-39680","1":"page","2":"type-page","3":"status-publish","4":"has-post-thumbnail","6":"category-melatonina","7":"category-sono","8":"entry"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.4 (Yoast SEO v23.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fun\u00e7\u00f5es do Melatonin &#8211; Chronobiology.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:\/\/dev.chronobiology.com\/pt-br\/melatonin-chronobiology\/funcoes-do-melatonin\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fun\u00e7\u00f5es do Melatonin\" \/>\n<meta property=\"og:description\" content=\"[vc_row full_width=&#8221;stretch_row&#8221; el_class=&#8221;banner-top&#8221; css=&#8221;.vc_custom_1479389167421{background-image: url(https:\/\/www.chronobiology.com\/wp-content\/uploads\/2016\/11\/melatonin-tasks-banner.jpg?id=11670) !important;}&#8221;][vc_column][vc_custom_heading source=&#8221;post_title&#8221; font_container=&#8221;tag:h1|text_align:center&#8221; use_theme_fonts=&#8221;yes&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;melatoninfacts2&#8243;][vc_column][vc_column_text] Fun\u00e7\u00f5es A melatonina, tamb\u00e9m chamada &#8220;horm\u00f4nio-m\u00e3e da cronobiologia&#8221;, \u00e9 um horm\u00f4nio produzido principalmente pela gl\u00e2ndula pineal. Est\u00e1 presente nos seres humanos, nos animais, nas plantas e at\u00e9 mesmo em algas unicelulares e filogen\u00e9ticamente antigas, ou seja, datadas de h\u00e1 tr\u00eas bilh\u00f5es de anos. A melatonina [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dev.chronobiology.com\/pt-br\/melatonin-chronobiology\/funcoes-do-melatonin\/\" \/>\n<meta property=\"og:site_name\" content=\"Chronobiology.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/chronobiology\" \/>\n<meta property=\"article:modified_time\" content=\"2022-07-20T07:12:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dev.chronobiology.com\/wp-content\/uploads\/2016\/11\/melatonin-tasks-banner.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1917\" \/>\n\t<meta property=\"og:image:height\" content=\"479\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@chronobionews\" \/>\n<meta name=\"twitter:label1\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/dev.chronobiology.com\/pt-br\/melatonin-chronobiology\/funcoes-do-melatonin\/\",\"url\":\"https:\/\/dev.chronobiology.com\/pt-br\/melatonin-chronobiology\/funcoes-do-melatonin\/\",\"name\":\"Fun\u00e7\u00f5es do Melatonin &#8211; 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Chronobiology.com","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dev.chronobiology.com\/pt-br\/melatonin-chronobiology\/funcoes-do-melatonin\/","og_locale":"pt_BR","og_type":"article","og_title":"Fun\u00e7\u00f5es do Melatonin","og_description":"[vc_row full_width=&#8221;stretch_row&#8221; el_class=&#8221;banner-top&#8221; css=&#8221;.vc_custom_1479389167421{background-image: url(https:\/\/www.chronobiology.com\/wp-content\/uploads\/2016\/11\/melatonin-tasks-banner.jpg?id=11670) !important;}&#8221;][vc_column][vc_custom_heading source=&#8221;post_title&#8221; font_container=&#8221;tag:h1|text_align:center&#8221; use_theme_fonts=&#8221;yes&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;melatoninfacts2&#8243;][vc_column][vc_column_text] Fun\u00e7\u00f5es A melatonina, tamb\u00e9m chamada &#8220;horm\u00f4nio-m\u00e3e da cronobiologia&#8221;, \u00e9 um horm\u00f4nio produzido principalmente pela gl\u00e2ndula pineal. 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