{"id":30141,"date":"2021-12-31T15:26:44","date_gmt":"2021-12-31T14:26:44","guid":{"rendered":"https:\/\/hellocare.com\/blog\/?p=30141"},"modified":"2025-12-05T10:14:50","modified_gmt":"2025-12-05T09:14:50","slug":"lumiere-et-sante","status":"publish","type":"post","link":"https:\/\/www.hellocare.com\/blog\/lumiere-et-sante\/","title":{"rendered":"Lumi\u00e8re et sant\u00e9 : avez-vous une bonne hygi\u00e8ne lumineuse ?"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-1\" style=\"--awb-content-alignment:justify;\"><p><span style=\"font-size: regular;\"><span style=\"font-size: 18px; line-height: 1.6em; letter-spacing: 0px;\"><span class=\"fusion-dropcap dropcap\">J<\/span><\/span><\/span><span style=\"font-weight: 400;\">ours qui raccourcissent, temp\u00e9ratures qui diminuent, moral en berne ou baisse de forme\u00a0: l\u2019hiver on entrerait bien en hibernation. Mais d\u2019o\u00f9 provient cette fatigue qui nous tombe dessus en cette saison\u00a0? R\u00e9ponse\u00a0: du manque de luminosit\u00e9. En effet, <\/span><span style=\"font-weight: 400;\">lumi\u00e8re et sant\u00e9 <\/span><span style=\"font-weight: 400;\">vont de pair, et les<\/span><span style=\"font-weight: 400;\"> effets biologiques de la lumi\u00e8re<\/span><span style=\"font-weight: 400;\"> ne sont aujourd\u2019hui plus \u00e0 prouver. Les connaissez-vous ?<\/span><\/p>\n<p><span style=\"font-size: regular;\"><!--more--><\/span><\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-image-element fusion-image-align-center in-legacy-container\" style=\"text-align:center;--awb-max-width:500px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><div class=\"imageframe-align-center\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"800\" height=\"500\" alt=\"Lumi\u00e8re et sant\u00e9 : avez vous une bonne hygi\u00e8ne lumineuse ?\" title=\"Lumi\u00e8re et sant\u00e9 : avez vous une bonne hygi\u00e8ne lumineuse ?\" src=\"https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2021\/12\/lumiere-et-sante.png\" data-orig-src=\"https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2021\/12\/lumiere-et-sante.png\" class=\"lazyload img-responsive wp-image-31393\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27800%27%20height%3D%27500%27%20viewBox%3D%270%200%20800%20500%27%3E%3Crect%20width%3D%27800%27%20height%3D%27500%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2021\/12\/lumiere-et-sante-200x125.png 200w, https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2021\/12\/lumiere-et-sante-400x250.png 400w, https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2021\/12\/lumiere-et-sante-600x375.png 600w, https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2021\/12\/lumiere-et-sante.png 800w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1000px) 100vw, 800px\" \/><\/span><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:1.3;\"><h2>De r\u00e9centes d\u00e9couvertes sur le lien entre lumi\u00e8re et sant\u00e9<\/h2><\/h3><\/div><div class=\"fusion-text fusion-text-2\"><p><span style=\"font-weight: 400;\">Nombre d\u2019exp\u00e9riences ont \u00e9t\u00e9 men\u00e9es pour v\u00e9rifier l\u2019impact du manque de lumi\u00e8re sur l\u2019organisme humain. Parmi elles, une consiste \u00e0 plonger des individus dans l\u2019obscurit\u00e9 pour observer la <strong>d\u00e9synchronisation de leur horloge biologique<\/strong>. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Notre horloge biologique se situe au c\u0153ur du cerveau, dans l\u2019hypothalamus. Elle r\u00e9git le rythme circadien, qui regroupe tous les processus biologiques cycliques d&rsquo;une dur\u00e9e de 24 heures. Un de ces processus est la s\u00e9cr\u00e9tion hormonale, qui implique le cortisol et la m\u00e9latonine, respectivement hormones du r\u00e9veil et de l\u2019endormissement. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les exp\u00e9riences ont donc prouv\u00e9 que notre horloge biologique se d\u00e9r\u00e8gle quand nous manquons de luminosit\u00e9. Ce m\u00e9canisme est \u00e9tudi\u00e9 en <\/span><a href=\"https:\/\/www.inserm.fr\/dossier\/chronobiologie\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">chronobiologie<\/span><\/a><span style=\"font-weight: 400;\">, une science qui s\u2019int\u00e9resse entre autre aux <\/span><span style=\"font-weight: 400;\">effets biologiques de la lumi\u00e8re<\/span><span style=\"font-weight: 400;\">. En 2002, des chercheurs ont d\u00e9couvert un nouveau circuit r\u00e9tinien par lequel elle p\u00e9n\u00e8tre notre organisme, n\u2019ayant aucun lien avec les fonctions visuelles. Cette d\u00e9couverte confirme que la lumi\u00e8re a des fonctions essentielles dissoci\u00e9es de la simple vision. <\/span><\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-3\"><blockquote>\n<p style=\"text-align: center;\"><strong><span style=\"font-size: large;\"><a href=\"https:\/\/www.hellocare.com\" rel=\"noopener noreferrer\">Besoin de conseils ?<br \/>\nConsultez un professionnel de sant\u00e9 en ligne <i class=\"fas fa-video\"><\/i> <\/a>\u00a0<\/span><\/strong><\/p>\n<\/blockquote>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-5 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:1.3;\"><h2>Effets biologiques de la lumi\u00e8re<\/h2><\/h3><\/div><div class=\"fusion-text fusion-text-4\"><p><span style=\"font-weight: 400;\">Lumi\u00e8re et sant\u00e9<\/span><span style=\"font-weight: 400;\"> sont indissociables, cette premi\u00e8re \u00e9tant impliqu\u00e9e dans de nombreuses fonctions biologiques chez l\u2019Homme\u00a0:\u00a0<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">la temp\u00e9rature corporelle et le m\u00e9tabolisme en g\u00e9n\u00e9ral<\/span><\/li>\n<li>les performances intellectuelles et cognitives<\/li>\n<li>le syst\u00e8me cardio-vasculaire<\/li>\n<li>la s\u00e9cr\u00e9tion d\u2019hormones et de vitamine D<\/li>\n<li>le syst\u00e8me immunitaire<\/li>\n<li>le sommeil<\/li>\n<li>l\u2019humeur<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\"><strong>Ne pas \u00eatre suffisamment expos\u00e9 quotidiennement \u00e0 la lumi\u00e8re naturelle peut s\u00e9rieusement endommager la sant\u00e9<\/strong>. Cela se v\u00e9rifie sur les personnes travaillant de nuit, ou en journ\u00e9e sous des lumi\u00e8res artificielles. On observe notamment un taux de suicide \u00e9lev\u00e9 dans les pays nordiques o\u00f9 les nuits peuvent \u00eatre particuli\u00e8rement longues.\u00a0<\/span><\/p>\n<\/div><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:1.3;\"><h3><b>\u00a0Obscurit\u00e9, stress et d\u00e9pression<\/b><\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-5\"><p><span style=\"font-weight: 400;\">Au m\u00eame titre qu\u2019un manque de lumi\u00e8re en journ\u00e9e peut d\u00e9clencher une d\u00e9pression saisonni\u00e8re, la lumi\u00e8re artificielle la nuit a le m\u00eame r\u00e9sultat. En effet, la lumi\u00e8re d\u00e9clenche la s\u00e9cr\u00e9tion de cortisol, hormone du r\u00e9veil, mais aussi du stress. Le manque de lumi\u00e8re naturelle en journ\u00e9e quant \u00e0 lui favorise une s\u00e9cr\u00e9tion anormale de m\u00e9latonine, l\u2019hormone du sommeil, provoquant fatigue, abattement ou d\u00e9pression.<\/span><\/p>\n<\/div><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:1.3;\"><h3><b>Lumi\u00e8re et prise de poids<\/b><\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-6\"><p><span style=\"font-weight: 400;\">En plus de nuire au sommeil, l\u2019exposition \u00e0 la lumi\u00e8re artificielle la nuit favoriserait la prise de poids. En effet, le m\u00e9tabolisme humain, qui se charge notamment de transformer les calories en \u00e9nergie, se retrouve perturb\u00e9 par un sommeil trop l\u00e9ger. Dormir avec une t\u00e9l\u00e9vision allum\u00e9e, une veilleuse, ou tout autre source lumineuse m\u00eame discr\u00e8te dans une chambre nuit \u00e0 la production de m\u00e9latonine et au sommeil. <\/span>On pourrait m\u00eame <a href=\"https:\/\/www.medisite.fr\/minceur-dormir-avec-une-source-de-lumiere-favoriserait-la-prise-de-poids.5515137.524223.html\" target=\"_blank\" rel=\"noopener\">prendre un kilo par an en dormant pr\u00e8s d\u2019une source lumineuse !<\/a><\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-6 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-5 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:1.3;\"><h2>Lumi\u00e8re et sant\u00e9 : Surveiller son hygi\u00e8ne lumineuse<\/h2><\/h3><\/div><div class=\"fusion-text fusion-text-7\"><p><span style=\"font-weight: 400;\">M\u00eame s\u2019il n\u2019existe aujourd\u2019hui aucune recommandation officielle concernant l\u2019exposition \u00e0 la lumi\u00e8re, on conna\u00eet de mieux en mieux les liens entre <\/span><span style=\"font-weight: 400;\">lumi\u00e8re et sant\u00e9<\/span><span style=\"font-weight: 400;\">. On peut ainsi \u00eatre carenc\u00e9 en lumi\u00e8re naturelle au m\u00eame titre qu\u2019\u00eatre carenc\u00e9 en certains nutriments, essentiels au bon fonctionnement de notre organisme. Rappelons par exemple que sans rayons ultra-violet, notre corps ne peut <\/span><a href=\"https:\/\/www.hellocare.com\/blog\/vitamine-d\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">synth\u00e9tiser de la vitamine D<\/span><\/a><span style=\"font-weight: 400;\">. Il est donc primordial d\u2019adopter une bonne hygi\u00e8ne lumineuse. Cela passe par :<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">s\u2019exposer chaque jour au minimum 15 minutes \u00e0 la lumi\u00e8re du jour <\/span><\/li>\n<li>ne jamais dormir avec une source lumineuse proche<\/li>\n<li>ne pas utiliser d\u2019\u00e9crans au moins une heure avant le coucher<\/li>\n<li>se coucher \u00e0 heures fixes<\/li>\n<li>en hiver, selon son rythme de vie, envisager une luminoth\u00e9rapie, ou se procurer une lampe de luminoth\u00e9rapie reproduisant le spectre lumineux de la lumi\u00e8re naturelle<\/li>\n<\/ul>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-7 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-6 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-image-element fusion-image-align-center in-legacy-container\" style=\"text-align:center;--awb-max-width:500px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><div class=\"imageframe-align-center\"><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><a class=\"fusion-no-lightbox\" href=\"https:\/\/www.hellocare.com\/\" target=\"_blank\" aria-label=\"T\u00e9l\u00e9consultation m\u00e9decin en urgence\" rel=\"noopener noreferrer\"><img decoding=\"async\" width=\"1200\" height=\"627\" alt=\"consulter m\u00e9decin en ligne\" src=\"https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2022\/08\/PUB-GENERIQUES-FB-2022-1200-\u00d7-627-px-3.png\" data-orig-src=\"https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2022\/08\/PUB-GENERIQUES-FB-2022-1200-\u00d7-627-px-3.png\" class=\"lazyload img-responsive wp-image-31096\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271200%27%20height%3D%27627%27%20viewBox%3D%270%200%201200%20627%27%3E%3Crect%20width%3D%271200%27%20height%3D%27627%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2022\/08\/PUB-GENERIQUES-FB-2022-1200-\u00d7-627-px-3-200x105.png 200w, https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2022\/08\/PUB-GENERIQUES-FB-2022-1200-\u00d7-627-px-3-400x209.png 400w, https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2022\/08\/PUB-GENERIQUES-FB-2022-1200-\u00d7-627-px-3-600x314.png 600w, https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2022\/08\/PUB-GENERIQUES-FB-2022-1200-\u00d7-627-px-3-800x418.png 800w, https:\/\/www.hellocare.com\/blog\/wp-content\/uploads\/2022\/08\/PUB-GENERIQUES-FB-2022-1200-\u00d7-627-px-3.png 1200w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1000px) 100vw, 1200px\" \/><\/a><\/span><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ours qui raccourcissent, temp\u00e9ratures qui diminuent, moral en berne ou baisse de forme\u00a0: l\u2019hiver on entrerait bien en<\/p>\n","protected":false},"author":21,"featured_media":31393,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[575],"tags":[],"class_list":["post-30141","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sante-generale-medecine"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Lumi\u00e8re et sant\u00e9 : surveiller son hygi\u00e8ne lumineuse | Hellocare<\/title>\n<meta name=\"description\" content=\"Jours qui raccourcissent, temp\u00e9ratures et moral en berne ou baisse de forme, n&#039;oubliez pas que lumi\u00e8re et sant\u00e9 vont de pair en hiver !\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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