[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.kuru.cz\/proc-maji-lide-rozdilnou-barvu-kuze\/#Article","mainEntityOfPage":"https:\/\/www.kuru.cz\/proc-maji-lide-rozdilnou-barvu-kuze\/","headline":"Pro\u010d maj\u00ed lid\u00e9 rozd\u00edlnou barvu k\u016f\u017ee","name":"Pro\u010d maj\u00ed lid\u00e9 rozd\u00edlnou barvu k\u016f\u017ee","description":"Lid\u00e9 mohou m\u00edt k\u016f\u017ei nejr\u016fzn\u011bj\u0161\u00ed barvy, od prakticky \u010dern\u00e9 a\u017e po t\u00e9m\u011b\u0159 b\u00edlou. Kdo jen trochu zn\u00e1 historii, v\u00ed, jak\u00e9 probl\u00e9my pr\u00e1v\u011b barva k\u016f\u017ee zp\u016fsobila. Rozhodn\u011b tedy neza\u0161kod\u00ed se pod\u00edvat,…","datePublished":"2023-02-27","dateModified":"2023-02-27","author":{"@type":"Person","@id":"https:\/\/www.kuru.cz\/author\/#Person","name":"","url":"https:\/\/www.kuru.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/4860d213c5bedfa07ff2b166ff7b069759f9dbf79eae813578c75f9f8cb939b7?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4860d213c5bedfa07ff2b166ff7b069759f9dbf79eae813578c75f9f8cb939b7?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"kuru.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.kuru.cz\/wp-content\/uploads\/generace2_2.jpg","url":"https:\/\/www.kuru.cz\/wp-content\/uploads\/generace2_2.jpg","height":0,"width":0},"url":"https:\/\/www.kuru.cz\/proc-maji-lide-rozdilnou-barvu-kuze\/","about":["V\u011bda"],"wordCount":464,"articleBody":"Lid\u00e9 mohou m\u00edt k\u016f\u017ei nejr\u016fzn\u011bj\u0161\u00ed barvy, od prakticky \u010dern\u00e9 a\u017e po t\u00e9m\u011b\u0159 b\u00edlou. Kdo jen trochu zn\u00e1 historii, v\u00ed, jak\u00e9 probl\u00e9my pr\u00e1v\u011b barva k\u016f\u017ee zp\u016fsobila. Rozhodn\u011b tedy neza\u0161kod\u00ed se pod\u00edvat, pro\u010d v\u00a0n\u00ed existuje tolik r\u016fzn\u00fdch odst\u00edn\u016f.\u00a0V\u00a0prvn\u00ed \u0159ad\u011b je pot\u0159eba si \u0159\u00edci, \u017ee p\u016fvodn\u00ed barva je \u010dern\u00e1. Jako druh poch\u00e1z\u00edme z\u00a0africk\u00fdch savan, kde jsme se museli vypo\u0159\u00e1dat se hork\u00fdm podneb\u00edm i slune\u010dn\u00edmi paprsky, p\u0159ed kter\u00fdmi nebylo \u00faniku. A vzhledem k\u00a0tomu, \u017ee jsme o srst d\u00edky na\u0161\u00ed adaptaci na styl lovc\u016f specializovan\u00fdch na lov zv\u011b\u0159e \u0161tvan\u00edm p\u0159i\u0161li, bylo nutn\u00e9 se chr\u00e1nit jin\u00fdm zp\u016fsobem.\u00a0\u00a0Asi ka\u017ed\u00fd z\u00a0n\u00e1s zn\u00e1 varov\u00e1n\u00ed ko\u017en\u00edch l\u00e9ka\u0159\u016f, \u017ee dlouhodob\u00e9 vystavov\u00e1n\u00ed slune\u010dn\u00edm paprsk\u016fm m\u016f\u017ee zp\u016fsobit rakovinu k\u016f\u017ee. To plat\u00ed dnes stejn\u011b jako v\u00a0d\u00e1vn\u00e9 minulosti. Bylo tedy nutn\u00e9 se n\u011bjak\u00fdm zp\u016fsobem adaptovat.\u00a0V\u00fdsledkem byla zv\u00fd\u0161en\u00e1 produkce ko\u017en\u00edho barviva melaninu, kter\u00e9 funguje v\u00a0podstat\u011b jako \u0161t\u00edt. \u010c\u00edm v\u00edce jej m\u00e1me, t\u00edm je na\u0161e poko\u017eka tmav\u0161\u00ed a t\u00edm m\u00e9n\u011b n\u00e1m Slunce m\u016f\u017ee ubl\u00ed\u017eit. Zde v\u0161ak vyvst\u00e1v\u00e1 ot\u00e1zka, pro\u010d tedy existuje i b\u00edl\u00e1 barva k\u016f\u017ee, kdy\u017e je ta tmav\u00e1 tak v\u00fdhodn\u00e1.\u00a0\u00a0Pravdou je, \u017ee velk\u00e9 mno\u017estv\u00ed melaninu m\u00e1 i sv\u00e9 nev\u00fdhody. Jist\u011b, blokuje slune\u010dn\u00ed paprsky, ale t\u00edm tak\u00e9 sni\u017euje mno\u017estv\u00ed vitaminu D, kter\u00fd d\u00edky nim z\u00edsk\u00e1v\u00e1me. V\u00a0centr\u00e1ln\u00ed Africe, kde Slunce sv\u00edt\u00ed skute\u010dn\u011b intenzivn\u011b po cel\u00fd rok, to nen\u00ed a\u017e takov\u00fd probl\u00e9m. Severn\u011bj\u0161\u00ed oblasti jsou na tom v\u0161ak jinak.\u00a0Proto lid\u00e9, kte\u0159\u00ed se p\u0159est\u011bhovali z\u00a0Afriky na sever do Evropy a Asie, maj\u00ed ni\u017e\u0161\u00ed mno\u017estv\u00ed melaninu. V\u00a0t\u011bchto zem\u011bpisn\u00fdch \u0161\u00ed\u0159k\u00e1ch jej nen\u00ed tolik pot\u0159eba, a naopak je nutn\u00e9, aby poko\u017eka slune\u010dn\u00edho z\u00e1\u0159en\u00ed absorbovala co nejv\u00edce. A \u010d\u00edm v\u00edce na sever jdeme, t\u00edm je tento trend znateln\u011bj\u0161\u00ed.\u00a0Je tedy dobr\u00e9 si uv\u011bdomit, \u017ee tmav\u0161\u00ed k\u016f\u017ee po opalov\u00e1n\u00ed je pouze obrann\u00fd mechanismus poko\u017eky, kter\u00fd se n\u00e1s sna\u017e\u00ed chr\u00e1nit p\u0159ed \u0161kodliv\u00fdm z\u00e1\u0159en\u00edm. Pokud se na Slunci sp\u00e1l\u00edme, jde ve skute\u010dnosti o radia\u010dn\u00ed pop\u00e1leniny. A to je tak\u00e9 d\u016fvod, pro\u010d m\u016f\u017ee slun\u011bn\u00ed v\u00e9st k\u00a0rakovin\u011b k\u016f\u017ee, co\u017e nen\u00ed n\u011bco, co by kdokoliv z\u00a0n\u00e1s cht\u011bl. Proto se rozhodn\u011b vyplat\u00ed pou\u017e\u00edvat opalovac\u00ed kr\u00e9my.                                                                                                                                                                                                                                                                                                                                                                                        3.7\/5 - (7 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Pro\u010d maj\u00ed lid\u00e9 rozd\u00edlnou barvu k\u016f\u017ee","item":"https:\/\/www.kuru.cz\/proc-maji-lide-rozdilnou-barvu-kuze\/#breadcrumbitem"}]}]