{"id":8017,"date":"2022-11-28T00:00:00","date_gmt":"2022-11-27T23:00:00","guid":{"rendered":"https:\/\/instrid.sk\/uncategorized\/vedci-prichadzaju-s-prekvapivym-zistenim-kolko-litrov-vody-denne-vypit\/"},"modified":"2022-11-28T00:00:00","modified_gmt":"2022-11-27T23:00:00","slug":"vedci-prichadzaju-s-prekvapivym-zistenim-kolko-litrov-vody-denne-vypit","status":"publish","type":"post","link":"https:\/\/instrid.sk\/en\/archiv\/vedci-prichadzaju-s-prekvapivym-zistenim-kolko-litrov-vody-denne-vypit\/","title":{"rendered":"Ko\u013eko litrov vody sa odpor\u00fa\u010da denne vypi\u0165? Vedci prich\u00e1dzaj\u00fa s prekvapiv\u00fdm zisten\u00edm"},"content":{"rendered":"

Po\u010das tepl\u00fdch letn\u00fdch dn\u00ed sa sna\u017e\u00edme prija\u0165 viac vody, av\u0161ak nemali by sme na to zab\u00fada\u0165 ani po\u010das zimy. Zv\u00e4\u010d\u0161a sa odpor\u00fa\u010da vypi\u0165 osem poh\u00e1rov denne, \u010do predstavuje pribli\u017ene dva litre. Vedci v\u0161ak prich\u00e1dzaj\u00fa s prekvapiv\u00fdm zisten\u00edm<\/strong>, informuje The Guardian.<\/p>\n

Spom\u00ednan\u00e9 odpor\u00fa\u010danie m\u00f4\u017eeme \u010dasto n\u00e1js\u0165 aj v zdravotn\u00edckych usmerneniach. Najnov\u0161ia \u0161t\u00fadia odha\u013euje fakt, \u017ee v\u00e4\u010d\u0161ina \u013eud\u00ed potrebuje denne prija\u0165 len 1,5 a\u017e 1,8 litra<\/strong>.<\/p>\n

\u201eS\u00fa\u010dasn\u00e9 odpor\u00fa\u010danie nie je v\u00f4bec vedecky podporovan\u00e9.<\/em><\/strong> V\u00e4\u010d\u0161ina vedcov si nie je ist\u00e1, odkia\u013e poch\u00e1dza,\u201c tvrd\u00ed Yosuke Yamada, ktor\u00fd p\u00f4sob\u00ed v N\u00e1rodnom in\u0161tit\u00fate biomedic\u00ednskych inov\u00e1ci\u00ed, zdravia a v\u00fd\u017eivy v Japonsku.<\/p>\n

Ignorovanie vody v potravin\u00e1ch<\/h3>\n

Predch\u00e1dzaj\u00face odhady mali tendenciu ignorova\u0165 obsah vody v potravin\u00e1ch. Aj v danom pr\u00edpade m\u00f4\u017ee \u00eds\u0165 o podstatn\u00fa \u010das\u0165 celkov\u00e9ho pr\u00edjmu jednotlivca<\/strong>.<\/p>\n

\u201eAk budete jes\u0165 len chlieb, slaninu a vajcia, nez\u00edskate ve\u013ea vody z jedla. Ak budete jes\u0165 m\u00e4so, zeleninu, ryby, cestoviny a ry\u017eu, m\u00f4\u017eete z\u00edska\u0165 pribli\u017ene 50 % svojej potreby vody z jedla,\u201c<\/em><\/strong> vysvet\u013euje Yamada.<\/p>\n

Port\u00e1l The Conversation prich\u00e1dza so zisten\u00edm, \u017ee dokonca aj pitie piva prispieva k odpor\u00fa\u010danej spotrebe<\/strong>. Okrem toho vlhkos\u0165 obsiahnut\u00fa v jedle m\u00f4\u017eeme n\u00e1js\u0165 aj v \u010derstvom ovoc\u00ed, polievkach, mlieku, k\u00e1ve \u010di limon\u00e1dach.<\/p>\n

V\u00fdskum s deut\u00e9riom<\/h3>\n

Spom\u00ednan\u00e1 \u0161t\u00fadia publikovan\u00e1 v \u010dasopise Science hodnotila pr\u00edjem vody na vzorke 5 604 \u013eud\u00ed vo vekovej kateg\u00f3rii do 96 rokov, uv\u00e1dza The Guardian. Ich n\u00e1rodnos\u0165 bola obsiahnut\u00e1 v 23 krajin\u00e1ch. Ich cie\u013eom bolo vypi\u0165 poh\u00e1r vody, v ktorej boli niektor\u00e9 at\u00f3my vod\u00edka nahraden\u00e9 deut\u00e9riom<\/strong>, zn\u00e1mym ako stabiln\u00fd izotop vod\u00edka. Prirodzene sa nach\u00e1dza v \u013eudskom tele a je ne\u0161kodn\u00e9.<\/p>\n Denn\u00e1 spotreba vody je ve\u013emi individu\u00e1lna. Zdroj: pexels.com\n

Port\u00e1l ScienceAlert p\u00ed\u0161e, \u017ee tento typ vody sa \u010dasto pou\u017e\u00edva na experimenty s metabolizmom, nako\u013eko dok\u00e1\u017ee sledova\u0165 r\u00fdchlos\u0165 chemik\u00e1li\u00ed v tele. Okrem toho m\u00e1 vo svojom jadre \u010fal\u0161\u00ed neutr\u00f3n, \u010do zapr\u00ed\u010di\u0148uje, \u017ee jednotliv\u00e9 at\u00f3my s\u00fa dvakr\u00e1t \u0165a\u017e\u0161ie ne\u017e at\u00f3m vod\u00edka. M\u00f4\u017ee sa naz\u00fdva\u0165 aj ako \u201e\u0165a\u017ek\u00e1 voda\u201c, nako\u013eko je o 10 % \u0165a\u017e\u0161ia v porovnan\u00ed s norm\u00e1lnou vodou.<\/strong><\/p>\n

R\u00fdchlos\u0165 elimin\u00e1cie nadbyto\u010dn\u00e9ho deut\u00e9ria odha\u013euje, akou r\u00fdchlos\u0165ou sa voda dok\u00e1\u017ee premeni\u0165 v tele, uv\u00e1dza The Guardian. Pomocou dan\u00fdch inform\u00e1ci\u00ed \u0161t\u00fadia zistila, \u017ee stanoven\u00e1 miera sa l\u00ed\u0161i v z\u00e1vislosti od veku, pohlavia, \u00farovne aktivity a okolia. \u013dudia \u017eij\u00faci v hor\u00facom a vlhkom podneb\u00ed alebo vo vysok\u00fdch nadmorsk\u00fdch v\u00fd\u0161kach potrebuj\u00fa prija\u0165 viac vody.<\/strong> V\u00fdnimkou nie s\u00fa ani \u0161portovci \u010di tehotn\u00e9 a doj\u010diace \u017eeny.<\/p>\n

V\u00fddaj energie ako k\u013e\u00fa\u010dov\u00fd faktor<\/h3>\n

Pr\u00e1ve v\u00fddaj energie je zohr\u00e1vaj\u00facim faktorom v obrate tejto \u017eivotne d\u00f4le\u017eitej tekutiny. Najvy\u0161\u0161ie hodnoty sa uv\u00e1dzaj\u00fa pri mu\u017eskom pohlav\u00ed vo veku 20 a\u017e 35 rokov<\/strong>, pri\u010dom ide pribli\u017ene a\u017e o 4,2 litra denne. U star\u0161\u00edch mu\u017eov ide pribli\u017ene len o 2,5 litra denne.<\/p>\n

Priemern\u00fd obrat u \u017eien vo veku 20 a\u017e 40 by sa mal pohybova\u0165 okolo 3,3 litra. Do 90. roku \u017eivota kles\u00e1 na 2,5 litra. Individu\u00e1lnou skupinou s\u00fa aj \u0161portovci<\/strong>, ktor\u00ed maj\u00fa obrat vy\u0161\u0161\u00ed asi o liter v porovnan\u00ed s \u013eu\u010fmi, ktor\u00ed nemaj\u00fa zv\u00fd\u0161en\u00fa fyzick\u00fa aktivitu.<\/p>\n

\u201e\u0160t\u00fadia ukazuje, \u017ee be\u017en\u00fd n\u00e1vrh, \u017ee by sme v\u0161etci mali vypi\u0165 osem poh\u00e1rov vody denne je pre v\u00e4\u010d\u0161inu \u013eud\u00ed vo v\u00e4\u010d\u0161ine situ\u00e1ci\u00ed pravdepodobne pr\u00edli\u0161 vysok\u00fd,\u201c<\/em><\/strong> hovor\u00ed profesor John Speakman p\u00f4sobiaci na University of Aberdeen.<\/p>\n

\u201eMysl\u00edm si, \u017ee je to odpor\u00fa\u010danie, ktor\u00e9 mnoh\u00ed \u013eudia jednoducho ignoruj\u00fa a riadia sa t\u00fdm, \u010do im hovor\u00ed ich telo,\u201c<\/em><\/strong> dod\u00e1va.<\/p>\n

Okrem toho ScienceAlert dod\u00e1va, \u017ee obrat sa zv\u00fd\u0161il aj u \u017eien v tre\u0165om trimestri tehotenstva a po\u010das doj\u010denia<\/strong>. Ni\u017e\u0161\u00ed obrat sa naopak vyskytol u \u013eud\u00ed so sedav\u00fdm \u017eivotn\u00fdm \u0161t\u00fdlom \u017eij\u00facich v rozvinut\u00fdch krajin\u00e1ch.<\/p>\n \u0160portovci vypij\u00fa pribli\u017ene o liter vody viac. Zdroj: pexels.com\n

Vedci poukazuj\u00fa na d\u00f4le\u017eitos\u0165 vylep\u0161enia usmernen\u00ed v d\u00f4sledku rastu popul\u00e1cie a klimatick\u00fdch zmien, ktor\u00e9 ovplyvnia dostupnos\u0165 vody pre \u013eudsk\u00fa popul\u00e1ciu<\/strong>.<\/p>\n

Vplyv na zdravie<\/h3>\n

\u010eal\u0161ie \u0161t\u00fadie uv\u00e1dzaj\u00fa, \u017ee pitie pribli\u017ene dvoch litrov vody denne zni\u017euje tvorbu obli\u010dkov\u00fdch kame\u0148ov a infekci\u00ed mo\u010dov\u00e9ho mech\u00fara, p\u00ed\u0161e The Conversation. Neexistuj\u00fa v\u0161ak vedeck\u00e9 podklady potvrdzuj\u00face, \u017ee zv\u00fd\u0161en\u00e1 spotreba vedie k zlep\u0161eniu pleti \u010di lep\u0161ej funkcii obli\u010diek.<\/strong> Pokia\u013e \u013eudia konzumuj\u00fa vysokokalorick\u00e9 n\u00e1poje, m\u00f4\u017ee to ma\u0165 naopak negat\u00edvny dopad na ich fyzick\u00e9 zdravie.<\/p>\n

\u010ealej sa uv\u00e1dza, \u017ee pitie vody m\u00f4\u017ee ovplyvni\u0165 aj du\u0161evn\u00fd stav<\/strong>. \u017deny s \u00fazkostn\u00fdmi stavmi hl\u00e1sia v\u00e4\u010d\u0161\u00ed pr\u00edjem vody, nako\u013eko sa potom c\u00edtia lep\u0161ie. M\u00f4\u017eeme to definova\u0165 ako aktiv\u00e1ciu okruhov odme\u0148ovania zvy\u0161uj\u00face dopam\u00edn. Av\u0161ak treba pouk\u00e1za\u0165 aj na to, \u017ee \u0161t\u00fadie zobrazovania mozgu potvrdzuj\u00fa, \u017ee nadmern\u00e9 pitie sa ozna\u010duje za nepr\u00edjemn\u00e9. Dan\u00e1 aktivita vy\u017eaduje v\u00e4\u010d\u0161iu svalov\u00fa n\u00e1mahu ne\u017e pri pit\u00ed po\u010das sm\u00e4du.<\/p>","protected":false},"excerpt":{"rendered":"

Po\u010das tepl\u00fdch letn\u00fdch dn\u00ed sa sna\u017e\u00edme prija\u0165 viac vody, av\u0161ak nemali by sme na to zab\u00fada\u0165 ani po\u010das zimy. Zv\u00e4\u010d\u0161a sa odpor\u00fa\u010da vypi\u0165 osem poh\u00e1rov<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-8017","post","type-post","status-publish","format-standard","hentry","category-archiv","two-columns"],"_links":{"self":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/8017","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/comments?post=8017"}],"version-history":[{"count":0,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/8017\/revisions"}],"wp:attachment":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/media?parent=8017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/categories?post=8017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/tags?post=8017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}