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Većina ljudi zna da čovjek može duže živjeti bez hrane nego bez vode jer je ljudski organizam u velikom dijelu sastavljen od vode i ona je nužna za metabolizam i sve osnovne tjelesne funkcije. Najmanje 60 % ljudskog tijela čini voda, a posebno je važna za izbacivanje štetnih tvari putem bubrega. Čovjek težak 70 kilograma u sebi nosi 45 litara vode, javlja Geek.hr, a prenosi Slobodna Dalmacija.

Osoba bez vode može izdržati najviše pet dana, a u slučaju da uvjeti budu iznimno loši to može biti i kraće jer tijelo konstantno gubi vodu znojenjem, mokrenjem i disanjem. Ako je osoba u području gdje su izrazito visoke temperature, može gubiti i više od litre tekućine svakih nekoliko sati, a u ekstremnijim uvjetima ta količina moguća je i samo sat vremena ako se radi o iznimnoj vrućini. 

Bez hrane je lakše preživjeti i mnogo duže. Prema pisanju spomenutog portala, jedna osoba je bez hrane uspjela preživjeti čak dva mjeseca. Ova nevjerojatna situacija moguća je samo zato što se naše tijelo neprestano bori za život. 

Metabolizam ne funkcionira na kompliciran način, čim orgnizam osjeti da je smanjen unos hrane i kalorija, pokrene metaboličke procese pomoću kojih se zalihe usmjeravaju tamo gdje su najpotrebnije. 

Nakon šest sati dolazi do pokretanja zaliha energije i trošenja glukoze za daljnji rad, a kod većine ljudi u tom periodu dolazi do pojave razdražljivosti i gladi. Tada tijelo ulazi u stanje ketoze  jer više nema glikogena za trošenje pa na red za to dolaze masne kiseline. Zbog manjka hranjivih tvari i mozak će se prilagoditi novonastaloj situaciji i početi trošiti četiri puta manje hranjivih tvari, nastavlja Geek.hr.  

Ako prođe više od 72 sata mozak se nastaviti sa smanjenjem svojih potreba i opskrbljivat će se aminokiselinama iz proteina. Ipak, tada će ući u fazu da tijelo "jede samo sebe" zbog čega će oslabiti imunitet i to će se nastaviti dok ne nestane novih načina za preživljavanje što će rezultirati smrću, obično zastojem srca. 

Raspon umiranja od gladi je različit te ovisi od osobe do osobe, pa dok su neki ljudi bez hrane umrli nakon 20 dana, neki su uspjeli preživjeti i do 70 dana. Primjer za ovako ekstremni period je štrajk glađu u Irskoj, kada je deset muškaraca preživjelo bez hrane više od 2 mjeseca.

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Znate li koliko tijelu treba da počne ‘samo sebe jesti‘? 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Većina ljudi zna da čovjek može duže živjeti bez hrane nego bez vode jer je ljudski organizam u velikom dijelu sastavljen od vode i ona je nužna za metabolizam i sve osnovne tjelesne funkcije. Najmanje 60 % ljudskog tijela čini voda, a posebno je važna za izbacivanje štetnih tvari putem bubrega. Čovjek težak 70 kilograma u sebi nosi 45 litara vode, javlja Geek.hr, a prenosi Slobodna Dalmacija.

Osoba bez vode može izdržati najviše pet dana, a u slučaju da uvjeti budu iznimno loši to može biti i kraće jer tijelo konstantno gubi vodu znojenjem, mokrenjem i disanjem. Ako je osoba u području gdje su izrazito visoke temperature, može gubiti i više od litre tekućine svakih nekoliko sati, a u ekstremnijim uvjetima ta količina moguća je i samo sat vremena ako se radi o iznimnoj vrućini. 

Bez hrane je lakše preživjeti i mnogo duže. Prema pisanju spomenutog portala, jedna osoba je bez hrane uspjela preživjeti čak dva mjeseca. Ova nevjerojatna situacija moguća je samo zato što se naše tijelo neprestano bori za život. 

Metabolizam ne funkcionira na kompliciran način, čim orgnizam osjeti da je smanjen unos hrane i kalorija, pokrene metaboličke procese pomoću kojih se zalihe usmjeravaju tamo gdje su najpotrebnije. 

Nakon šest sati dolazi do pokretanja zaliha energije i trošenja glukoze za daljnji rad, a kod većine ljudi u tom periodu dolazi do pojave razdražljivosti i gladi. Tada tijelo ulazi u stanje ketoze  jer više nema glikogena za trošenje pa na red za to dolaze masne kiseline. Zbog manjka hranjivih tvari i mozak će se prilagoditi novonastaloj situaciji i početi trošiti četiri puta manje hranjivih tvari, nastavlja Geek.hr.  

Ako prođe više od 72 sata mozak se nastaviti sa smanjenjem svojih potreba i opskrbljivat će se aminokiselinama iz proteina. Ipak, tada će ući u fazu da tijelo "jede samo sebe" zbog čega će oslabiti imunitet i to će se nastaviti dok ne nestane novih načina za preživljavanje što će rezultirati smrću, obično zastojem srca. 

Raspon umiranja od gladi je različit te ovisi od osobe do osobe, pa dok su neki ljudi bez hrane umrli nakon 20 dana, neki su uspjeli preživjeti i do 70 dana. Primjer za ovako ekstremni period je štrajk glađu u Irskoj, kada je deset muškaraca preživjelo bez hrane više od 2 mjeseca.

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Monika Skolimowska/AFP
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StoryEditorOCM
ZabavaFascinantno

Više vremena možemo provesti bez hrane nego bez vode, ali sve ovisi o posebnim uvjetima. Znate li koliko tijelu treba da počne ‘samo sebe jesti‘?

Piše PSD
25. siječnja 2022. - 07:10

Većina ljudi zna da čovjek može duže živjeti bez hrane nego bez vode jer je ljudski organizam u velikom dijelu sastavljen od vode i ona je nužna za metabolizam i sve osnovne tjelesne funkcije. Najmanje 60 % ljudskog tijela čini voda, a posebno je važna za izbacivanje štetnih tvari putem bubrega. Čovjek težak 70 kilograma u sebi nosi 45 litara vode, javlja Geek.hr, a prenosi Slobodna Dalmacija.

Osoba bez vode može izdržati najviše pet dana, a u slučaju da uvjeti budu iznimno loši to može biti i kraće jer tijelo konstantno gubi vodu znojenjem, mokrenjem i disanjem. Ako je osoba u području gdje su izrazito visoke temperature, može gubiti i više od litre tekućine svakih nekoliko sati, a u ekstremnijim uvjetima ta količina moguća je i samo sat vremena ako se radi o iznimnoj vrućini. 

Bez hrane je lakše preživjeti i mnogo duže. Prema pisanju spomenutog portala, jedna osoba je bez hrane uspjela preživjeti čak dva mjeseca. Ova nevjerojatna situacija moguća je samo zato što se naše tijelo neprestano bori za život. 

Metabolizam ne funkcionira na kompliciran način, čim orgnizam osjeti da je smanjen unos hrane i kalorija, pokrene metaboličke procese pomoću kojih se zalihe usmjeravaju tamo gdje su najpotrebnije. 

Nakon šest sati dolazi do pokretanja zaliha energije i trošenja glukoze za daljnji rad, a kod većine ljudi u tom periodu dolazi do pojave razdražljivosti i gladi. Tada tijelo ulazi u stanje ketoze  jer više nema glikogena za trošenje pa na red za to dolaze masne kiseline. Zbog manjka hranjivih tvari i mozak će se prilagoditi novonastaloj situaciji i početi trošiti četiri puta manje hranjivih tvari, nastavlja Geek.hr.  

Ako prođe više od 72 sata mozak se nastaviti sa smanjenjem svojih potreba i opskrbljivat će se aminokiselinama iz proteina. Ipak, tada će ući u fazu da tijelo "jede samo sebe" zbog čega će oslabiti imunitet i to će se nastaviti dok ne nestane novih načina za preživljavanje što će rezultirati smrću, obično zastojem srca. 

Raspon umiranja od gladi je različit te ovisi od osobe do osobe, pa dok su neki ljudi bez hrane umrli nakon 20 dana, neki su uspjeli preživjeti i do 70 dana. Primjer za ovako ekstremni period je štrajk glađu u Irskoj, kada je deset muškaraca preživjelo bez hrane više od 2 mjeseca.

15. svibanj 2024 16:30