{"id":181,"date":"2012-01-14T17:23:50","date_gmt":"2012-01-14T16:23:50","guid":{"rendered":"https:\/\/www.idealdieta.it\/?p=181"},"modified":"2022-02-18T17:25:51","modified_gmt":"2022-02-18T16:25:51","slug":"il-journal-of-medicine-ci-spiega-perche-alcune-diete-falliscono","status":"publish","type":"post","link":"https:\/\/www.idealdieta.it\/?p=181","title":{"rendered":"Il Journal of Medicine ci spiega perch\u00e9 alcune diete falliscono"},"content":{"rendered":"<div class=\"fcbkbttn_buttons_block\" id=\"fcbkbttn_left\"><div class=\"fcbkbttn_like \"><div class=\"fb-like fb-like-box_count\" data-href=\"https:\/\/www.idealdieta.it\/?p=181\" data-colorscheme=\"light\" data-layout=\"box_count\" data-action=\"like\"  data-size=\"small\"><\/div><\/div><div class=\"fb-share-button  \" data-href=\"https:\/\/www.idealdieta.it\/?p=181\" data-type=\"button_count\" data-size=\"small\"><\/div><\/div><p>L'&#8221;agonia&#8221; delle diete fallite, che affligge in particolare le donne con l&#8217;arrivo della bella stagione, ha ora una spiegazione scientifica. Da una ricerca pubblicata sul New England Journal of medicine emerge infatti che tagliare la calorie modifica il metabolismo e influisce negativamente anche sul cervello, amplificando il desiderio del cibo fino quasi a farlo diventare un&#8217;ossessione.<\/p>\n<p>Questo meccanismo, secondo gli scienziati della Columbia University Medical Centre , sarebbe dovuto all&#8217;ormone che stimola l&#8217;appetito, la grelina, che aumenterebbe in maniera esponenziale durante una dieta rispetto a quelli che invece lo frenano, come il peptide YY e la leptina.<\/p>\n<p><!--more--><\/p>\n<p>Nel frattempo, le scansioni del cervello mostrano che la perdita di peso rende piu&#8217; difficile esercitare l&#8217;autocontrollo e resistere cibo allettante. Per arrivare a questi risultati sono stati reclutati 50 donne e uomini obesi, che per otto settimane hanno fatto una dieta piuttosto rigida 500-550 calorie.<\/p>\n<p>Alla fine delle otto settimane la perdita di peso si aggirava intorno ai 13 chili, ma nonostante per l&#8217;anno successivo sia stato fornito dal team di ricerca un supporto per una migliore alimentazione alla fine i pazienti hanno riacquistato peso, circa cinque chili, e hanno inoltre cominciato a sentirsi molto piu&#8217; affamati.<\/p>\n<p>I livelli dell&#8217;ormone che sopprime l&#8217;appetito, il peptide YY, erano insolitamente bassi, come quelli di leptina, un altro ormone che aumenta il tasso metabolico.<\/p>\n<p>In pratica, spiegano gli scienziati, si e&#8217; verificato un meccanismo coordinato di difesa con piu&#8217; componenti tutte dirette verso la realizzazione di un aumento di peso. In altre parole una reazione contro la dieta, perche&#8217; se il corpo umano ha gli &#8220;anticorpi&#8221; per fermare la perdita di peso, ha invece un sistema carente per prevenire l&#8217;ingrassamento.<\/p>\n<p>fonte\u00a0<a href=\"http:\/\/www.ansa.it\/web\/notizie\/specializzati\/saluteebenessere\/2012\/04\/24\/Ecco-perche-diete-falliscono-_6767670.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.ansa.it<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&#8217;&#8221;agonia&#8221; delle diete fallite, che affligge in particolare le donne con l&#8217;arrivo della bella stagione, ha ora una<\/p>\n","protected":false},"author":1,"featured_media":182,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[90,91],"class_list":["post-181","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dieta-societa","tag-diete-falliscono","tag-journal-of-medicine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.5.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Il Journal of Medicine ci spiega perch\u00e9 alcune diete falliscono - idealdieta<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.idealdieta.it\/?p=181\" \/>\r\n<meta property=\"og:locale\" content=\"it_IT\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Il Journal of Medicine ci spiega perch\u00e9 alcune diete falliscono - idealdieta\" \/>\r\n<meta property=\"og:description\" content=\"L&#039;&#8221;agonia&#8221; 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