[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.hass.cz\/proc-jsou-lide-zijici-blize-rovniku-tmavsi-nez-ti-zijici-blize-polu\/#Article","mainEntityOfPage":"https:\/\/www.hass.cz\/proc-jsou-lide-zijici-blize-rovniku-tmavsi-nez-ti-zijici-blize-polu\/","headline":"Pro\u010d jsou lid\u00e9 \u017eij\u00edc\u00ed bl\u00ed\u017ee rovn\u00edku tmav\u0161\u00ed ne\u017e ti \u017eij\u00edc\u00ed bl\u00ed\u017ee p\u00f3lu","name":"Pro\u010d jsou lid\u00e9 \u017eij\u00edc\u00ed bl\u00ed\u017ee rovn\u00edku tmav\u0161\u00ed ne\u017e ti \u017eij\u00edc\u00ed bl\u00ed\u017ee p\u00f3lu","description":"Je velmi dob\u0159e zn\u00e1mo, \u017ee \u010d\u00edm d\u00e1l na sever \u010di na jih od rovn\u00edku jdeme, t\u00edm maj\u00ed lid\u00e9 sv\u011btlej\u0161\u00ed poko\u017eku. P\u016fvodn\u00ed obyvatel\u00e9 rovn\u00edkov\u00e9 afriky ji maj\u00ed t\u00e9m\u011b\u0159 ebenov\u011b \u010dernou, zat\u00edmco nap\u0159\u00edklad Inuit\u00e9 naopak velmi sv\u011btlou. A vzhledem k\u00a0tomu, \u017ee tento trend pozorujeme po cel\u00e9m sv\u011bt\u011b, je jasn\u00e9, \u017ee to nen\u00ed n\u00e1hoda. Ve skute\u010dnosti jde o...","datePublished":"2024-05-30","dateModified":"2024-05-30","author":{"@type":"Person","@id":"https:\/\/www.hass.cz\/author\/#Person","name":"","url":"https:\/\/www.hass.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/91506ed60e31abe586276a3e1420719df081581a820344a28fa2034bb1a2fe22?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/91506ed60e31abe586276a3e1420719df081581a820344a28fa2034bb1a2fe22?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"hass.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.hass.cz\/wp-content\/uploads\/kultura6_10_3.jpg","url":"https:\/\/www.hass.cz\/wp-content\/uploads\/kultura6_10_3.jpg","height":0,"width":0},"url":"https:\/\/www.hass.cz\/proc-jsou-lide-zijici-blize-rovniku-tmavsi-nez-ti-zijici-blize-polu\/","about":["V\u011bda"],"wordCount":423,"articleBody":"Je velmi dob\u0159e zn\u00e1mo, \u017ee \u010d\u00edm d\u00e1l na sever \u010di na jih od rovn\u00edku jdeme, t\u00edm maj\u00ed lid\u00e9 sv\u011btlej\u0161\u00ed poko\u017eku. P\u016fvodn\u00ed obyvatel\u00e9 rovn\u00edkov\u00e9 afriky ji maj\u00ed t\u00e9m\u011b\u0159 ebenov\u011b \u010dernou, zat\u00edmco nap\u0159\u00edklad Inuit\u00e9 naopak velmi sv\u011btlou. A vzhledem k\u00a0tomu, \u017ee tento trend pozorujeme po cel\u00e9m sv\u011bt\u011b, je jasn\u00e9, \u017ee to nen\u00ed n\u00e1hoda. Ve skute\u010dnosti jde o pom\u011brn\u011b d\u016fmysln\u00fd evolu\u010dn\u00ed mechanismus, kter\u00fd v\u0161ak v\u00a0dne\u0161n\u00ed dob\u011b globalizace za\u010d\u00edn\u00e1 pon\u011bkud selh\u00e1vat.\u00a0Abychom pochopili z\u00e1kladn\u00ed princip, mus\u00edme si uv\u011bdomit, \u017ee Slunce, stejn\u011b jako ka\u017ed\u00e1 jin\u00e1, je vlastn\u011b ob\u0159\u00edm nest\u00edn\u011bn\u00fdm jadern\u00fdm reaktorem. Jako takov\u00e9 i k\u00a0na\u0161\u00ed planet\u011b neust\u00e1le vys\u00edl\u00e1 radioaktivn\u00ed z\u00e1\u0159en\u00ed. Jist\u011b, jeho velk\u00e1 \u010d\u00e1st je odst\u00edn\u011bna oz\u00f3nem (i proto byla oz\u00f3nov\u00e1 d\u00edra takov\u00fd probl\u00e9m), av\u0161ak \u010d\u00e1st z\u00a0n\u011bj stejn\u011b dopad\u00e1 na zemsk\u00fd povrch. Je tedy nutn\u00e9, aby jej \u017eiv\u00e9 organismy n\u011bjak\u00fdm zp\u016fsobem blokovaly.\u00a0\u00a0Jeliko\u017e lid\u00e9 nemaj\u00ed srst ani \u0161upiny, kter\u00e9 by je kryly, nezb\u00fdv\u00e1, ne\u017e se spolehnout na barvivo melanin. \u010c\u00edm v\u00edce jej v\u00a0k\u016f\u017ei m\u00e1me, t\u00edm v\u00edce \u0161kodliv\u00fdch paprsk\u016f je blokov\u00e1no. Probl\u00e9m v\u0161ak je, \u017ee spolu s\u00a0on\u00edm z\u00e1\u0159en\u00edm tak\u00e9 blokuje tvorbu vitaminu D, ke kter\u00e9 je naopak toto z\u00e1\u0159en\u00ed pot\u0159eba. Je tedy nutn\u00e9 nal\u00e9zt kompromis mezi ob\u011bma pot\u0159ebami.\u00a0\u00a0V\u00a0oblastech kolem rovn\u00edku, kde Slunce sv\u00edt\u00ed daleko intenzivn\u011bji, nen\u00ed produkce vitaminu D takov\u00fd probl\u00e9m, nebo\u0165 paprsk\u016f je zde dostatek. Ov\u0161em ve vy\u0161\u0161\u00edch \u010di ni\u017e\u0161\u00edch zem\u011bpisn\u00fdch \u0161\u00ed\u0159k\u00e1ch, kde paprsky nejsou ani zdaleka tak p\u0159\u00edm\u00e9, to za\u010d\u00edn\u00e1 b\u00fdt probl\u00e9m. Na druhou stranu, dopad\u00e1 tam i m\u00e9n\u011b UV radiace. Zde je tedy vhodn\u011bj\u0161\u00ed sv\u011btlej\u0161\u00ed poko\u017eka, nebo\u0165 nen\u00ed pot\u0159eba takov\u00e1 ochrana, av\u0161ak z\u00e1rove\u0148 je nutn\u00e9 produkovat vitamin D efektivn\u011bji. D\u00e1 se tedy \u0159\u00edci, \u017ee jsme se narodili pro dan\u00e9 podm\u00ednky.\u00a0Probl\u00e9m v\u0161ak nast\u00e1v\u00e1, pokud hodn\u011b cestujeme, \u010di pokud se p\u0159est\u011bhujeme do m\u00edst, kter\u00e9 na\u0161emu mno\u017estv\u00ed melaninu neodpov\u00edd\u00e1. Jist\u011b, lid\u00e9 s\u00a0b\u00edlou plet\u00ed se mohou op\u00e1lit, av\u0161ak to nen\u00ed ani pln\u00e1 n\u00e1hrada. \u010cern\u00ed lid\u00e9 nav\u00edc nemohou zesv\u011btlat. To jsou pak v\u011bci, kter\u00e9 si lid\u00e9 neuv\u011bdomuj\u00ed, a kter\u00e9 jim pak p\u0159in\u00e1\u0161\u00ed probl\u00e9my. "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Pro\u010d jsou lid\u00e9 \u017eij\u00edc\u00ed bl\u00ed\u017ee rovn\u00edku tmav\u0161\u00ed ne\u017e ti \u017eij\u00edc\u00ed bl\u00ed\u017ee p\u00f3lu","item":"https:\/\/www.hass.cz\/proc-jsou-lide-zijici-blize-rovniku-tmavsi-nez-ti-zijici-blize-polu\/#breadcrumbitem"}]}]