Njengoko sisazi kakuhle, iintlobo ezahlukeneyo zezinja zineempawu ezahlukeneyo ezichaphazela ukwakheka kunye nokuziphatha kwazo, phakathi kwezinye izinto. Enye yazo kukuphila ixesha elide, kuba sithetha nje izinja ezincinci zokuzala baphila ixesha elide kunelo uhlobo olukhulu. Namhlanje, isayensi ibalisa ngemiphumo yeeradicals zasimahla kunye nale nyani kwaye iphanda ezinye ithiyori.
Isifundo seDyunivesithi yaseColgate
Ekuqaleni konyaka, iziphumo zophando olwenziwe UJosh Winward kunye no-Alex Ionescu, ovela kwiYunivesithi yaseColgate eNew York. Iqela lakhe laqokelela malunga neesampulu ezingama-80 zeethishu kwiinjana ezisandula ukubhubha nezinja ezindala, zombini ezinkulu nezinkulu. Bazibeka bodwa iiseli kwezi ntsalela baziphucula elabhoratri ukuze zihlolwe.
Ngale nto, bafumanise ukuba imetabolism yeenjana ezinkulu zenzalo zikhawuleza, kuba zisebenzisa isixa esikhulu samandla xa kuthelekiswa nezinja ezincinci. Oku kubangela ukuphakama kwamanqanaba abo Iidrafikhi zasimahla, ezinokukhokelela ekonakaleni kweseli, kuba ukuveliswa kwayo kwee-antioxidants zokulwa nazo akonelanga. Konke oku kunciphisa ubomi besilwanyana.
Umcimbi wehomoni
Enye ithiyori ichaza ihomoni ebizwa IGF-1, ikwabizwa ngokuba yinto yokukhula 1, ekhoyo kuzo zonke izilwanyana ezanyisayo. Luxanduva lwayo ukukhuthaza ukukhula kweeseli nokuphindaphindwa, ngoko ke nakuphi na ukutshintsha kuyo kuchaphazela ubungakanani besilwanyana. Kananjalo, inxulunyaniswa nezifo ezinje ngomhlaza kunye neengxaki zentliziyo. Izinja ezincinci zinamanqanaba asezantsi ale hormone, anokuchaza ukuba kutheni zikhula kancinci kancinci kunezinja ezinkulu.
Ubungakanani bentliziyo ehambelana nobunzima bomzimba
Ngokobungakanani bazo, izinja ezinkulu zinazo eyona ntliziyo incinci kuneentlobo ezincinci. Kukho ithiyori engekaqinisekiswa enxulumene nokulindelwa kobomi bezinja ezinkulu kunye nenyani yokuba kufuneka zimpompe isixa esikhulu segazi emzimbeni wazo, ngenxa yoko iintliziyo zazo zihlupheka ngakumbi.