Je pond\u011bl\u00ed r\u00e1no. Sed\u00edte u\u00a0po\u010d\u00edta\u010de a\u00a0p\u00ed\u0161ete d\u016fle\u017eit\u00fd e-mail pro klienta. B\u011bhem toho v\u00e1m v\u00a0kapse zavibruje telefon s\u00a0novou zpr\u00e1vou, na vedlej\u0161\u00edm monitoru na v\u00e1s blik\u00e1 upozorn\u011bn\u00ed z\u00a0firemn\u00edho chatu a\u00a0do u\u0161\u00ed v\u00e1m hraje podcast. P\u0159ipad\u00e1te si jako dokonal\u00fd mana\u017eer 21.\u00a0stolet\u00ed. Jste maxim\u00e1ln\u011b produktivn\u00ed, zvl\u00e1d\u00e1te d\u011blat t\u0159i v\u011bci najednou a\u00a0\u0161et\u0159\u00edte drahocenn\u00fd \u010das.<\/p>\n
Nebo si to alespo\u0148 mysl\u00edte.<\/p>\n
Pravda, kterou v\u00a0posledn\u00edch letech odkr\u00fdvaj\u00ed neurologov\u00e9 a\u00a0kognitivn\u00ed psychologov\u00e9, je toti\u017e dosti nep\u0159\u00edjemn\u00e1. To, co pova\u017eujeme za vrchol efektivity, je ve skute\u010dnosti ten v\u016fbec nejhor\u0161\u00ed mo\u017en\u00fd zp\u016fsob, jak\u00fdm m\u016f\u017eeme zach\u00e1zet s\u00a0lidsk\u00fdm mozkem. V\u011bdci dlouho tu\u0161ili, \u017ee neust\u00e1l\u00e9 rozptylov\u00e1n\u00ed vede k\u00a0chyb\u00e1m<\/a>, ale to, co re\u00e1ln\u011b uk\u00e1zaly detailn\u00ed testy kognitivn\u00edch schopnost\u00ed, \u0161okovalo i\u00a0samotn\u00e9 v\u00fdzkumn\u00edky.<\/p>\n Uk\u00e1zalo se, \u017ee takzvan\u00fd multitasking zkr\u00e1tka a\u00a0dob\u0159e neexistuje. A\u00a0pokusy o\u00a0n\u011bj nejen\u017ee va\u0161i pr\u00e1ci nezrychl\u00ed, ale fyzicky vy\u010derp\u00e1vaj\u00ed va\u0161i nervovou soustavu a\u00a0sr\u00e1\u017eej\u00ed va\u0161i inteligenci na \u00farove\u0148, je\u017e zcela pop\u00edr\u00e1 zdrav\u00fd rozum.<\/p>\n Mozek nen\u00ed v\u00edcej\u00e1drov\u00fd procesor<\/p>\n Abychom pochopili tento obrovsk\u00fd sebeklam, mus\u00edme se pod\u00edvat na to, jak p\u0159esn\u011b funguje na\u0161e prefront\u00e1ln\u00ed k\u016fra\u00a0\u2013 hlavn\u00ed \u0159\u00eddic\u00ed centrum mozku, kter\u00e9 zodpov\u00edd\u00e1 za soust\u0159ed\u011bn\u00ed, logiku a\u00a0racion\u00e1ln\u00ed rozhodov\u00e1n\u00ed.<\/p>\n Mnoho lid\u00ed si p\u0159edstavuje mozek jako modern\u00ed po\u010d\u00edta\u010d, kter\u00fd dok\u00e1\u017ee m\u00edt otev\u0159en\u00fdch deset oken najednou a\u00a0zpracov\u00e1vat je paraleln\u011b. To je ale omyl. Va\u0161e prefront\u00e1ln\u00ed k\u016fra funguje sp\u00ed\u0161e jako \u00fazk\u00fd, extr\u00e9mn\u011b siln\u00fd reflektor na temn\u00e9m divadeln\u00edm p\u00f3diu. Dok\u00e1\u017ee dokonale nasv\u00edtit jen jednoho jedin\u00e9ho herce (tedy jeden \u00fakol).<\/p>\n Kdy\u017e se sna\u017e\u00edte d\u011blat dv\u011b v\u011bdom\u00e9 \u010dinnosti najednou\u00a0\u2013 nap\u0159\u00edklad poslouchat kolegu a\u00a0u toho odpov\u00eddat na e-mail\u00a0\u2013 v\u00e1\u0161 mozek tyto \u010dinnosti ve skute\u010dnosti ned\u011bl\u00e1 sou\u010dasn\u011b. M\u00edsto toho prov\u00e1d\u00ed takzvan\u00fd task switching<\/a> (p\u0159ep\u00edn\u00e1n\u00ed pozornosti). Pomysln\u00fd reflektor ve va\u0161\u00ed hlav\u011b jen zb\u011bsile a\u00a0neviditeln\u011b blik\u00e1 z\u00a0jednoho herce na druh\u00e9ho.<\/p>\n P\u0159edstavte si, \u017ee \u0159\u00edd\u00edte auto na d\u00e1lnici a\u00a0ka\u017ed\u00e9 dv\u011b vte\u0159iny mus\u00edte p\u0159e\u0159adit z\u00a0p\u011btky na zp\u00e1te\u010dku a\u00a0hned zase zp\u011bt na p\u011btku. P\u0159esn\u011b to d\u011bl\u00e1te sv\u00e9mu mozku p\u0159i \u00fadajn\u00e9m multitaskingu. Ka\u017ed\u00e9 takov\u00e9 p\u0159epnut\u00ed stoj\u00ed obrovsk\u00e9 mno\u017estv\u00ed gluk\u00f3zy a\u00a0kysl\u00edku. Syst\u00e9m se p\u0159eh\u0159\u00edv\u00e1, \u201ep\u0159evodovka\u201c se ni\u010d\u00ed a\u00a0vy ve fin\u00e1le dojedete do c\u00edle mnohem pomaleji a\u00a0s po\u0161kozen\u00fdm motorem.<\/p>\n Ztr\u00e1ta 15\u00a0bod\u016f IQ: Hor\u0161\u00ed ne\u017e po probd\u011bl\u00e9 noci<\/p>\n