Sonke sicinga ukuba xa sisithi "amafutha", kuthetha into enobungozi nengadingekiyo emzimbeni, akunjalo? Kunjalo xa sithetha ngamafutha aqokelelana esiswini nasemaqakaleni. Kodwa ubusazi ukuba kukwakho nohlobo olubalulekileyo 'olulungileyo' lwamafutha olusemizimbeni yethu, olusincedayo? Yiloo nto siyibiza ngokuba "ngamafutha amdaka" okanye `(Amafutha amdaka)`. Ukuze sichaze kakuhle, ikwabizwa ngokuba `(Izicubu ze-Adipose ezimdaka)`. Olu luhlobo olukhethekileyo lwamafutha olusebenza njengesifudumezi esincinci emzimbeni wethu.
Yintoni umahluko phakathi kwamafutha amdaka namafutha amhlophe?
Ukuze sikuqonde kakuhle oku, kufuneka siqale sazi ngeentlobo ezimbini eziphambili zamafutha emizimbeni yethu.
1. Amafutha Amhlophe: Olu luhlobo lwamafutha esilwaziyo nesithetha ngawo rhoqo. Xa sitya iikhalori ezingaphezulu, oko kukuthi, ukutya okune-energy eninzi, kunokuba sikudingayo, loo mandla agqithisileyo agcinwa emizimbeni yethu njengamafutha amhlophe. Umzimba ugcina amandla ngale ndlela ukuze uwasebenzise kamva xa kungekho kutya. Ngokwesiqhelo, la mafutha agcinwa kwiindawo ezifana nesisu, izinqe, namathanga. Nangona kunjalo, ukuqokelelwa kwala mafutha amhlophe, ngakumbi kwindawo yesisu, kwandisa kakhulu umngcipheko wezifo ezifana nesifo sentliziyo kunye nesifo seswekile sohlobo lwesibini .
2. Amafutha amdaka: Eli liqhawe lebali lethu. Umsebenzi ophambili wamafutha amdaka asikokugcina amandla, kodwa kukutshisa amandla nokubonelela umzimba ngobushushu obufunekayo . La mabini enziwe ngezinto ezahlukeneyo. Amafutha amhlophe enziwe ngamathontsi amakhulu ee-fatty acids (lipids). Kodwa iiseli zamafutha amdaka zizaliswe luhlobo oluthile lwe-organelle ebizwa ngokuba yi-mitochondria .
Cinga nge-mitochondria njengeenjini ezincinci ngaphakathi kwiiseli zethu. Ezi ziiseli ezithatha iishukela namafutha esiwatyayo zize ziwatshise ukuze zenze amandla. Ezi mitochondria zityebile kwi-iron, yiyo loo nto amafutha amdaka efumana igama kunye nombala wawo. Amafutha amdaka anokugcina amandla amaninzi kwindawo encinci kakhulu kunamafutha amhlophe.
Jonga itheyibhile engezantsi ukuze uwuqonde ngcono lo mahluko.
| Uphawu | Amafutha Amhlophe | Amafutha amdaka |
|---|---|---|
| Umsebenzi ophambili | Ukugcina amandla angaphezulu. | Ukutshisa amandla nokuvelisa ubushushu. |
| Ubungakanani beMitochondria | Isezantsi kakhulu. | Ibiza kakhulu. |
| Umbala | Mhlophe okanye mthubi. | Imdaka kuba ityebile kwi-iron. |
| Impembelelo kwimpilo | Ukutyeba kakhulu kwandisa umngcipheko wokutyeba kakhulu, isifo seswekile, nesifo sentliziyo. | Inceda ukugcina ubushushu bomzimba kunye nokunyusa imetabolism. |
Isebenza njani le brown fat?
Le yinkqubo emangalisayo kakhulu. Khawucinge ukuba ubanda kakhulu. Emva koko umzimba wakho uqala ukungcangcazela, akunjalo? Oko kungcangcazela kukusebenza kwezihlunu kunye nokuveliswa kobushushu.
Kodwa jonga iintsana ezincinci. Iintsana ezisandul’ ukuzalwa azikwazi ukungcangcazela ukuze zifudumale njengathi. Ngubani ke ngoko ozikhuselayo ekubandeni? Kulapho ke amafutha amdaka angena khona. Xa iintsana zizalwa, zinamafutha amdaka amaninzi afumaneka emva kwamagxa azo nangasentanyeni yazo.
Xa umzimba wakho ubanda, ingqondo yakho ikhupha ihomoni ebizwa ngokuba yi-norepinephrine . Kufana nomyalezo othi, "Ubanda, fudumala!" Iiseli zamafutha ezimdaka zinee-receptors ezikhethekileyo ezinokuyibona le homoni. Xa zifumana lo myalezo, i-mitochondria engaphakathi kweeseli zamafutha ezimdaka iyavutha, itshise amandla ngesantya esiphezulu kwaye ivelise ubushushu.
Njengoko sikhula, njengoko amandla ethu okushukuma esanda, silahlekelwa uninzi lwala mafutha amdaka. Kodwa akapheli ngokupheleleyo. Kwanakwabantu abadala, kukho inani elincinci lamafutha amdaka aseleyo entanyeni, emagxeni, kufutshane nezintso, nasemgogodleni. Uphando lufumanise ukuba abantu ababhityileyo nabanamafutha aphantsi emzimbeni banamafutha amdaka amaninzi, kwaye abafazi banamafutha amdaka amaninzi kunamadoda .
Ubudlelwane phakathi kwamafutha amdaka kunye nempilo yethu
Ngoku izazinzulu zenza uphando oluninzi ngezinye izibonelelo zala mafutha amdaka. Ngokukodwa, zinomdla kakhulu wokuba angasetyenziswa na njengonyango lokutyeba kakhulu. Kuba ukuba amafutha amdaka angasebenzisa amafutha amhlophe njengepetroli aze awatshise, kunokuba luncedo olukhulu ekunciphiseni umzimba.
Uphando lwakutshanje lufumanise into ebaluleke kakhulu. Oko kukuthi, amafutha amdaka anokucoca ii-amino acid ezithile egazini lethu. Ngokukodwa, ii-amino acids i-leucine, i-isoleucine, kunye ne-valine . Sizifumana ezi zinto kwizinto ezifana namaqanda, inyama, intlanzi, kunye nobisi. Zikwafumaneka kwizongezo ezisetyenziswa ngabanye abantu ukwakha izihlunu. Ngomlinganiselo oqhelekileyo, ezi zilungile emzimbeni. Kodwa ukuqokelelwa kakhulu kwezi zinto egazini kuye kwanxulunyaniswa nokutyeba kakhulu kunye nesifo seswekile.
Ngamafutshane, xa unamafutha amdaka kancinci, kokukhona ungenakukwazi ukucoca ezi amino acid egazini lakho, nto leyo enokunyusa umngcipheko wezifo ezifana nokutyeba kakhulu nesifo seswekile.
Kukwaqhutywa uphando ukuze kubonwe ukuba iihomoni ezivuselela amafutha amdaka ziyaveliswa na ngexesha lokuzilolonga. Ithemba kukuba konke oku kuya kusebenzisa la mandla amangalisayo amafutha amdaka ukufumana unyango lokutyeba kakhulu kwixesha elizayo.
Ngaba amafutha amdaka angasetyenziselwa ukunciphisa umzimba?
Lo ngumbuzo abantu abaninzi abanawo. Oososayensi okwangoku bazama ukubona ukuba iyeza lingenza amafutha amdaka angasebenzi kakuhle ngaphandle kokubanda. Ukuba eli yeza linokufumaneka, lingaba sisiqalo sendlela entsha yokunciphisa umzimba.
Kodwa kukho umngcipheko omncinci. Xa amafutha amdaka evuliwe aze atshise amandla, anokunyusa izinga lentliziyo kunye noxinzelelo lwegazi . Oku akulunganga kubantu abasengozini yesifo sentliziyo. Ke ngoko, kufuneka uphando olunzulu ukuze kuqinisekiswe ukuba olu hlobo lweyeza lukhuselekile kangakanani.
Khumbula ke, ezi zisesekwinqanaba lophando. Ukuba ucinga ngokunciphisa umzimba, eyona ndlela ilungileyo nekhuselekileyo ngoku kukutya ukutya okunesondlo, ukuzilolonga rhoqo, kwaye ufune iingcebiso ezifanelekileyo kugqirha okanye kugqirha wakho.
Umyalezo Wokuya Ekhaya
- Kukho iintlobo ezimbini eziphambili zamafutha emizimbeni yethu. Amafutha amhlophe agcina amandla, kwaye amafutha amdaka atshisa amandla aze avelise ubushushu.
- Amafutha amdaka abalulekile ekugcineni ubushushu bomzimba, ingakumbi kwiintsana ezisandul’ ukuzalwa. Abantu abadala nabo banomlinganiselo omncinci emizimbeni yabo.
- Ukusebenzisa amafutha amdaka kungatshisa amafutha amhlophe. Kukwanceda ekuhluzeni ezinye izinto eziyingozi egazini, ezinokuba luncedo kwixesha elizayo ekulawuleni ukutyeba kakhulu nesifo seswekile.
- Nangona uphando malunga nophuhliso lwamayeza luqhubeka, lusekwinqanaba lokuqala. Kwimiba yezempilo efana nokulawula ubunzima, kubalulekile ukulandela iindlela ezivunyiweyo kunye neengcebiso zikagqirha wakho.
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