Ingabe Sinayo Isibalo Esiphelele Sokuphefumula Noma Inhliziyo?
Isilinganiso semfundiso yokuguga sithi abantu (kanye nezinye izinto eziphilayo) banezinombolo eziphefumulayo zokuphefumula, izinhliziyo , noma ezinye izinyathelo, nokuthi bazofa uma sebezisebenzisile.
Kodwa ungazami ukuhlala isikhathi eside ngokunciphisa umzimba wakho okwamanje nje: ngenkathi le mbono ibasiza ukuchaza ezinye izici zokuguga, akubambeli ngaphansi kwesayensi yanamuhla.
Umlando Wezinga Lokuphila Lombhalo
Isilinganiso semfundiso ephilayo yokuguga singase sibe yinye imibono endala ezama ukuchaza ukuthi kungani izilwane (kubandakanya abantu) empeleni zikhula.
Ezikhathini zasendulo, abantu bakholelwa ukuthi njengoba nje umshini uzoqala ukuwohloka ngemva kwenani elithile lokusebenzisa, umzimba womuntu wehla ngokuqondile ngokuvumelana nokusetshenziswa kwawo. Inguqulo yanamuhla yalesi sihloko iyaqaphela ukuthi inani lezinhliziyo azikwazi ukubikezela isikhathi sokuphila. Esikhundleni salokho, abacwaningi baye bagxila kwijubane lapho izinto eziphilayo zisebenza nge-oxygen.
Kunobunye ubufakazi, uma kuqhathaniswa nezinhlobo, ukuthi izidalwa ezine-metabolisms esheshayo ze-oxygen ziyafa. Isibonelo, izilwane ezincelisayo ezincane ezinomfutho wezinhliziyo eziphuthumayo zivuselela ngokushesha i-oxygen futhi zinezikhathi ezincane zokuphila, kuyilapho izinhlanzi zihamba kancane kancane futhi zinezinsuku ezinde zokuphila.
Ingabe Kukhona Ubufakazi Bokusekela Lokhu?
Akukhona ngempela okuningi.
Ngokwesibonelo, ocwaningweni olulodwa, abacwaningi babheka izimpumputhe ezakhiwe ngezakhi zofuzo ezaziphethe i-hypothalamus.
Iphutha labangela ukuba amagundane aphelelwe amandla, okusho ukuthi "asebenzise" ama-lifepans abo ngokushesha.
Ngenxa yokuthi i- hypothalamus emasimini iseduze nesikhungo sokulawula izinga lokushisa, ubuchopho kulezi zinsuku babecabanga ukuthi imizimba yabo iyashisa, ngakho-ke banciphisa izinga lokushisa lomgogodla. Imiphumela yabonisa ukuthi ukwehla kwe-.6 degrees Celsius kwandisa impilo yamagundane ngamaphesenti angu-12 kuya ku-20, ngakho-ke amagundane ahlala isikhathi eside ngokushisa komzimba okuphansi.
Inkinga ukuthi, asazi ukuthi kungani bahlala isikhathi eside. Ukushisa okungezansi kungase kwanciphise isilinganiso se-oxygen metabolism, kodwa kungase futhi kushintshe ezinye izinhlelo nezinqubo eziningi emzimbeni.
Ngakho-ke asazi ukuthi kungani amagundane ahlala isikhathi eside, kuphela ukuthi enza, futhi lokho akulona ubufakazi bokulinganisa kwemfundiso yokuguga.
Okubalulekile
Eqinisweni, abukho ubufakazi obuncane bokuthi umzimba we-oksijeni, ukushaya kwenhliziyo noma inombolo yokuphefumula kunquma ukuphila komuntu.
Le mbono ibonakala ifaka lapho izinhlobo ezincane ezine-metabolisms esheshayo (okungukuthi, amagundane) zifaniswa nezinhlobo ezinkulu ezinezibalo ezincane (okungukuthi, iziphuphu). Kodwa-ke, le mbono ingachaza kancane kancane umehluko wokuphila phakathi kwezinhlobo zezilwane, futhi ayikwazi ukuchaza isici esibaluleke kakhulu: yini ebeka ukuphila phakathi kwezinhlobo zezilwane.
Isibonelo, uma umuntu ephila iminyaka eyikhulu, bazobe bathatha ukuphefumula okuningi, bahlaziye umoya ophefumulayo futhi babe nezinhliziyo ezingaphezu kweyodwa kunomuntu ohlala kuphela kuze kube ngu-80. Okufunayo ukwazi, kusukela ekubhekaneni nokuphila isikhathi eside, yilokho okucacisa ukuthi ngabani abantu ngaphakathi izinhlobo zezilwane zihlala isikhathi eside kakhulu.
Ngakho ungangena e-hibernation okwamanje. Kukhona ngempela ukuthi idatha ayinciphisi umzimba we-metabolism yandisa impilo yabantu.
Eqinisweni, ukugaya umzimba kancane kancane kungafaka umuntu engozini yokukhuluphala nokunye okugula okunomsoco, ngakho-ke ukubheja kwakho okungcono kakhulu kuyindlela yokuphila enempilo enokuzivocavoca okuningi, nokudla okuningi kwezitshalo, nesimo sengqondo esihle nesilahlekile.
Imithombo:
> Jin K et al. Izintshumayelo Zanamuhla Zeziphilayo Zokuguga. Ukuguga nokugula. 2010 Okthoba 1; 1 (2): 72-74.
> Sanchez-Alavez M et al. Amagundane e-Transgenic ane-Temperature Yokunciphisa Yomzimba Enciphile Ane-Span Life Span. Isayensi . 3 Novemba 2006: Vol. 314. cha. 5800, iphe. 825 - 828.