Imfihlo yeOksijini kunye nokwaluphala

Ukuphefumla ioksijini = ukubuyisela ukuguga emva?

Ioksijini yinto ebalulekileyo efunekayo ekuphefumleni komntu. Ioksijini ingena emzimbeni womntu ngemiphunga kwaye ithwalwa ziiseli ezibomvu zegazi ukuya kwizicubu ezahlukeneyo kunye namalungu omzimba womntu, nto leyo enika isondlo semetabolism yeseli. Nangona kunjalo, njengoko umzimba womntu ukhula, amandla awo okufunxa ioksijini ayaqhubeka ehla. Ngokutsho kophando olwenziwe nguNjingalwazi uHermrnasen ngo-1973:

1. Umntu omdala onobunzima obuyi-70kg uphefumla malunga namaxesha angama-20,000 ngemini aze aphefumle malunga ne-0.75kg yeoksijini ngemini.

2. Umthamo wokungenisa ioksijini kwabasetyhini ufikelela kwinqanaba eliphezulu phakathi kweminyaka eli-15 nengama-25 ubudala kwaye uyancipha ngesantya se-2.5% ngonyaka.

3. Umthamo wokungenisa ioksijini kumadoda ufikelela kwinqanaba eliphezulu phakathi kweminyaka engama-20 ukuya kwengama-30 ubudala kwaye uncipha ngesantya se-2% ngonyaka.

Ukwaluphala yinkqubo yendalo yomzimba womntu kwaye yinto engenakulungiseka. Nangona kunjalo, ukwaluphala kuchatshazelwa zizinto ezininzi, kuquka izinto ezisingqongileyo, izinto zemfuza, izinto zengqondo, izifo, indlela yokuphila, njl. Kungumphumo wokudibana kwezinto ezininzi.

Yintoni "ithiyori yokuguga kwe-hypoxia"?

Ezinye iingcali zikholelwa ukuba ukwaluphala komntu ngamnye kuqala ekuzalweni. Ngale ndlela, inkqubo yobomi bomntu yinkqubo yokwaluphala. Ngaphezu koko, i-hypoxia engapheliyo kunye nokwaluphala zizinto ezibangela zombini. I-hypoxia engapheliyo ikhawulezisa ukuguga kwethu, kwaye ukwaluphala ngokwako kuzisa i-hypoxia engapheliyo emzimbeni.

Emva kokwaluphala, imisebenzi esisiseko yomzimba womntu iyawohloka, kuquka ukuwohloka kwenkqubo yentliziyo, inkqubo yokuphefumla, kunye nenkqubo yemithambo-luvo ephakathi. Iziphumo ezingasentla zokwaluphala komzimba zibangela ukuba abantu abadala bafumane ioksijini enciphileyo, amandla abo okuhambisa ioksijini anciphe, kunye nokusebenza kakuhle kokusebenzisa ioksijini, nto leyo ebangela ukuba zonke izicwili zomzimba zibe kwimeko ye-hypoxia engapheliyo ukuya kumanqanaba ahlukeneyo.

Ukuba umzimba ukwimeko ye-hypoxia engapheliyo, ioksijini ethunyelwa kwizitho nayo iya kuncipha, kwaye imisebenzi yezitho iya kuchaphazeleka okanye ingakwazi nokusebenza, nto leyo ebangela izifo ezahlukeneyo ezingapheliyo, ukonakala kwemisebenzi yomzimba, kunye nokwaluphala ngokukhawuleza. Ke ngoko, ukuguga komntu kunye ne-hypoxia engapheliyo ziicala ezimbini zengqekembe enye kwaye ziyachaphazelana.

Ngo-1969, iingcali zamanye amazwe zalinganisa ukuba uxinzelelo lwe-oksijini engaphelelanga kwimithambo yabantu abadala luyehla nge-3 mmHg kunyaka ngamnye wobudala, oko kukuthi, uxinzelelo lwe-oksijini engaphelelanga luyehla kancinci kancinci ngokuhamba kweminyaka, nto leyo ebangela i-hypoxia – ekwaziwa ngokuba yi-“hypoxia aging theory.”

Ioksijini ibangela inani eliphezulu lezinto ezifunekayo ebantwini, ukuya kuthi ga kwi-61%, kulandele ikhabhoni, ebalelwa kwi-20%, kwaye ihydrogen ibangela i-12%. Ezinye ezifana nenitrogen, icalcium, ichlorine, iphosphorus, isulfure, ifluorine, isodium, imagnesium kunye nesinyithi zonke zibangela inani elincinci kakhulu.

Ukungabikho koxilongo olungapheliyo kunye nezifo eziqhelekileyo zabantu abadala

• Izifo ezininzi zabantu abadala zizifo ezingapheliyo, ezinokuchaphazela ukuhanjiswa kweoksijini emzimbeni okanye zibangelwe yi-hypoxia. Ngamafutshane, zinxulumene kakhulu neoksijini.
• Ingqondo sisitho esinemfuno ephezulu yeoksijini emzimbeni womntu kwaye ikwanobuthathaka kakhulu kwi-hypoxia.
• Xa i-hypoxia iqala ukwenzeka, umzimba womntu uya kuphendula ngempendulo yokukhusela ehlawulelwayo.
• Ukuba iimpendulo zokubuyisela azikwazi ukuhlangabezana neemfuno zomzimba, umonakalo weeseli zobuchopho kuya kuba nzima ukuwubuyisela. Uthotho lweenguqu zesifo luya kuvela kwizitho ezibalulekileyo ezifana nentliziyo, imiphunga, isibindi kunye nezintso.

Indlela yokubuyisela ioksijini "elahlekileyo"?

Ukwaluphala yinkqubo yendalo yomzimba womntu. Ukuphefumla ioksijini akunakufikelela "ekukhuleni okungasemva" kobudala, kwaye akunakuyiphepha ngokupheleleyo imiphumo emibi yezifo ezahlukeneyo zabantu abadala. Nangona kunjalo, kunokunciphisa ubunzima bezifo ezininzi zabantu abadala, kuthintele isifo ukuba singabi mandundu, kukhuthaze ukuchacha, kwaye kunciphise inkqubo yokwaluphala.

Ngokufumana ioksijini rhoqo nangexesha elifanelekileyo, abantu abadala banokulungisa ngokuthe ngqo ukulahleka kobonelelo lweoksijini oluyimfuneko ngenxa yokungasebenzi kakuhle komzimba, ukuze kugcinwe ukusebenza okuqhelekileyo kwamalungu ahlukeneyo emzimbeni.