Mnoho \u013eud\u00ed si v\u0161imlo, \u017ee po vyjden\u00ed z baz\u00e9na, mora alebo dokonca sprchy sa r\u00fdchlo objav\u00ed pocit chladu. Aj v hor\u00facich d\u0148och m\u00f4\u017ee by\u0165 tento pocit na nieko\u013eko okamihov dos\u0165 intenz\u00edvny. Tento jav je \u00faplne norm\u00e1lny a vznik\u00e1 v d\u00f4sledku toho, ako \u013eudsk\u00e9 telo reaguje na zmeny teploty.<\/p>\n\n\n\n
Pocit chladu pri v\u00fdstupe z vody priamo s\u00favis\u00ed s odparovan\u00edm vody z poko\u017eky, stratou telesn\u00e9ho tepla a okolit\u00fdmi podmienkami prostredia. Na\u0161e tel\u00e1 neust\u00e1le pracuj\u00fa na udr\u017ean\u00ed stabilnej vn\u00fatornej teploty a ak\u00e1ko\u013evek zmena v tejto rovnov\u00e1he m\u00f4\u017ee sp\u00f4sobi\u0165 pocity tepla alebo chladu.<\/p>\n\n\n\n
Pre lep\u0161ie pochopenie tohto javu je d\u00f4le\u017eit\u00e9 pozna\u0165 niektor\u00e9 fyzik\u00e1lne a biologick\u00e9 procesy, ktor\u00e9 prebiehaj\u00fa v tele, ke\u010f vst\u00fapime do vody a vyst\u00fapime z nej.<\/p>\n\n\n\n
\u013dudsk\u00e9 telo m\u00e1 priemern\u00fa teplotu pribli\u017ene 36 a\u017e 37 stup\u0148ov Celzia. Telo neust\u00e1le pracuje na udr\u017ean\u00ed tejto stabilnej teploty, preto\u017ee je nevyhnutn\u00e1 pre spr\u00e1vne fungovanie org\u00e1nov a syst\u00e9mov.<\/p>\n\n\n\n
Ke\u010f sa nach\u00e1dzame v chladnom prostred\u00ed, telo sa sna\u017e\u00ed u\u0161etri\u0165 teplo. V hor\u00facom prostred\u00ed sa sna\u017e\u00ed teplo uvo\u013eni\u0165, aby sa predi\u0161lo prehriatiu.<\/p>\n\n\n\n
Ke\u010f vst\u00fapime do vody, najm\u00e4 ak je chladnej\u0161ia ako na\u0161a telesn\u00e1 teplota, doch\u00e1dza k v\u00fdmene tepla. Voda za\u010dne absorbova\u0165 \u010das\u0165 telesn\u00e9ho tepla, \u010do sp\u00f4sobuje pokles teploty poko\u017eky.<\/p>\n\n\n\n
Pocit chladu je v\u0161ak zvy\u010dajne e\u0161te intenz\u00edvnej\u0161\u00ed v momente, ke\u010f vyjdeme z vody.<\/p>\n\n\n\n
Jedn\u00fdm z hlavn\u00fdch d\u00f4vodov, pre\u010do n\u00e1m je zima, ke\u010f vyjdeme z vody, je proces naz\u00fdvan\u00fd odparovanie<\/strong>. Ke\u010f je poko\u017eka mokr\u00e1, voda na jej povrchu sa pri kontakte so vzduchom za\u010dne odparova\u0165.<\/p>\n\n\n\n Na odparovanie je potrebn\u00e1 tepeln\u00e1 energia. T\u00e1to energia sa z\u00edskava z tepla pr\u00edtomn\u00e9ho v poko\u017eke. V d\u00f4sledku toho sa teplota poko\u017eky zni\u017euje.<\/p>\n\n\n\n Tento proces je podobn\u00fd tomu, \u010do sa deje, ke\u010f sa pot\u00edme po\u010das fyzickej aktivity. Pot sa odparuje a pom\u00e1ha ochladi\u0165 telo.<\/p>\n\n\n\n Ke\u010f vyjdeme z vody, ve\u013ek\u00e9 mno\u017estvo tekutiny pr\u00edtomnej na poko\u017eke ur\u00fdch\u013euje tento proces odparovania a zvy\u0161uje pocit chladu.<\/p>\n\n\n\n Vietor m\u00f4\u017ee tie\u017e v\u00fdrazne zintenz\u00edvni\u0165 pocit chladu po vyst\u00fapen\u00ed z vody. Ke\u010f okolo tela cirkuluje vzduch, odparovanie vody z poko\u017eky prebieha r\u00fdchlej\u0161ie.<\/p>\n\n\n\n \u010c\u00edm r\u00fdchlej\u0161ie sa voda odparuje, t\u00fdm viac tepla sa odv\u00e1dza od poko\u017eky. V\u010faka tomu je pocit chladu e\u0161te silnej\u0161\u00ed.<\/p>\n\n\n\n Z tohto d\u00f4vodu sa mnoh\u00ed \u013eudia c\u00edtia ove\u013ea chladnej\u0161ie, ke\u010f vyjd\u00fa z mora vo vetern\u00fd de\u0148, ako v uzavretom prostred\u00ed, napr\u00edklad v krytom baz\u00e9ne.<\/p>\n\n\n\n Vietor ur\u00fdch\u013euje ochladzovanie poko\u017eky a zvy\u0161uje pocit chladu.<\/p>\n\n\n\n Voda m\u00e1 ove\u013ea v\u00e4\u010d\u0161iu schopnos\u0165 vies\u0165 teplo ako vzduch. To znamen\u00e1, \u017ee dok\u00e1\u017ee \u013eah\u0161ie odv\u00e1dza\u0165 teplo z tela.<\/p>\n\n\n\n Aj ke\u010f je voda tepl\u00e1 alebo pr\u00edjemn\u00e1, zvy\u010dajne je chladnej\u0161ia ako telesn\u00e1 teplota. Po\u010das \u010dasu, ktor\u00fd str\u00e1vime vo vode, telo postupne str\u00e1ca teplo.<\/p>\n\n\n\n Ke\u010f sme vo vode, t\u00fato tepeln\u00fa stratu \u010dasto nevn\u00edmame tak intenz\u00edvne. Ke\u010f v\u0161ak vyjdeme von a pr\u00eddeme do kontaktu so vzduchom, tento teplotn\u00fd rozdiel sa st\u00e1va zrete\u013enej\u0161\u00edm.<\/p>\n\n\n\n T\u00e1to n\u00e1hla zmena m\u00f4\u017ee zv\u00fd\u0161i\u0165 pocit chladu.<\/p>\n\n\n\n Ke\u010f telo c\u00edti, \u017ee r\u00fdchlo str\u00e1ca teplo, aktivuje niektor\u00e9 prirodzen\u00e9 obrann\u00e9 mechanizmy na udr\u017eanie svojej vn\u00fatornej teploty.<\/p>\n\n\n\n Jedn\u00fdm z t\u00fdchto mechanizmov je stiahnutie krvn\u00fdch ciev v bl\u00edzkosti ko\u017ee<\/strong>, Tento proces sa naz\u00fdva vazokonstrikcia. Zni\u017euje prietok krvi na povrch tela, aby sa zachovalo teplo vo vn\u00fatorn\u00fdch org\u00e1noch.<\/p>\n\n\n\n \u010eal\u0161ou \u010dastou reakciou je zimnica<\/strong>. Mal\u00e9 svaly pripojen\u00e9 k vlasov\u00fdm folikulom v ko\u017ei sa s\u0165ahuj\u00fa, \u010do sp\u00f4sobuje, \u017ee ch\u013apky stoja na konci. Hoci je tento mechanizmus \u00fa\u010dinnej\u0161\u00ed u zvierat s hustej\u0161ou srs\u0165ou, st\u00e1le sa vyskytuje aj u \u013eud\u00ed.<\/p>\n\n\n\n Tieto reakcie s\u00fa pokusmi tela o udr\u017eanie tepelnej rovnov\u00e1hy.<\/p>\n\n\n\n Intenzita chladu pri v\u00fdstupe z vody sa m\u00f4\u017ee zna\u010dne l\u00ed\u0161i\u0165 v z\u00e1vislosti od nieko\u013ek\u00fdch faktorov. Patria sem:<\/p>\n\n\n\n Ak je voda pr\u00edli\u0161 studen\u00e1 alebo ak v nej \u010dlovek zostane pr\u00edli\u0161 dlho, telo m\u00f4\u017ee strati\u0165 viac tepla, \u010do zvy\u0161uje pocit chladu, ke\u010f sa dostane von.<\/p>\n\n\n\n Podobne prostredie so siln\u00fdm vetrom alebo ni\u017e\u0161\u00edmi teplotami tento efekt e\u0161te viac zintenz\u00edv\u0148uje.<\/p>\n\n\n\n Existuje nieko\u013eko jednoduch\u00fdch sp\u00f4sobov, ako zmierni\u0165 pocit chladu pri vych\u00e1dzan\u00ed z vody. Jedn\u00fdm z naj\u00fa\u010dinnej\u0161\u00edch je r\u00fdchlo si osu\u0161i\u0165 telo uter\u00e1kom. Odstr\u00e1nen\u00edm vody z poko\u017eky sa spomal\u00ed proces odparovania.<\/p>\n\n\n\n \u010eal\u0161\u00edm tipom je \u010do najr\u00fdchlej\u0161ie si obliec\u0165 such\u00e9 oble\u010denie. Pom\u00e1ha to udr\u017eiava\u0165 telesn\u00e9 teplo a zni\u017euje kontakt medzi mokrou poko\u017ekou a studen\u00fdm vzduchom.<\/p>\n\n\n\n Je tie\u017e u\u017eito\u010dn\u00e9 h\u013eada\u0165 chr\u00e1nen\u00e9 miesta mimo vetra, preto\u017ee cirkul\u00e1cia vzduchu ur\u00fdch\u013euje stratu tepla.<\/p>\n\n\n\n Tieto opatrenia pom\u00e1haj\u00fa telu r\u00fdchlej\u0161ie obnovi\u0165 norm\u00e1lnu teplotu.<\/p>\n\n\n\n Pocit chladu pri v\u00fdstupe z vody vznik\u00e1 predov\u0161etk\u00fdm v d\u00f4sledku odparovania vody z poko\u017eky a straty telesn\u00e9ho tepla do okolit\u00e9ho prostredia. Ke\u010f sa voda odparuje, odv\u00e1dza teplo od poko\u017eky, \u010d\u00edm zni\u017euje jej teplotu a sp\u00f4sobuje pocit chladu.<\/p>\n\n\n\n Faktory ako vietor, teplota okolia a \u010das str\u00e1ven\u00fd vo vode tie\u017e ovplyv\u0148uj\u00fa intenzitu tohto efektu. Hoci to m\u00f4\u017ee by\u0165 na chv\u00ed\u013eu nepr\u00edjemn\u00e9, tento proces je s\u00fa\u010das\u0165ou prirodzen\u00e9ho fungovania \u013eudsk\u00e9ho tela.<\/p>\n\n\n\n Pochopenie toho, ako telo reaguje na zmeny teploty, pom\u00e1ha vysvetli\u0165, pre\u010do n\u00e1m je zima, ke\u010f vyjdeme z vody, a to aj v zdanlivo tepl\u00fdch d\u0148och.<\/p>","protected":false},"excerpt":{"rendered":" Muitas pessoas j\u00e1 perceberam que, ao sair da piscina, do mar ou at\u00e9 mesmo do banho, surge rapidamente uma sensa\u00e7\u00e3o de frio. Mesmo em dias quentes, essa sensa\u00e7\u00e3o pode aparecer de forma bastante intensa por alguns instantes. Esse fen\u00f4meno \u00e9 completamente normal e acontece por causa da forma como o corpo humano reage \u00e0s mudan\u00e7as […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-782","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-uncategorized"},"_links":{"self":[{"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/posts\/782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/comments?post=782"}],"version-history":[{"count":1,"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/posts\/782\/revisions"}],"predecessor-version":[{"id":784,"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/posts\/782\/revisions\/784"}],"wp:attachment":[{"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/media?parent=782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/categories?post=782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nolbviral.com\/sk\/wp-json\/wp\/v2\/tags?post=782"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Vplyv vetra<\/strong><\/h2>\n\n\n\n
Strata tepla vo vode<\/strong><\/h2>\n\n\n\n
Reakcia tela na chlad<\/strong><\/h2>\n\n\n\n
Pre\u010do sa v niektor\u00fdch situ\u00e1ci\u00e1ch c\u00edtime chladnej\u0161ie?<\/strong><\/h2>\n\n\n\n
\n
Ako zmierni\u0165 pocit chladu<\/strong><\/h2>\n\n\n\n
Z\u00e1ver<\/strong><\/h2>\n\n\n\n