Kungani abanye abantu bezwa ukunambitheka kokudla okubabayo?

Kungani abanye abantu bezwa ukunambitheka kokudla okubabayo?

Ukudla ukudla okubabayo kungaba yinto ebuhlungu ngempela, ephakamisa imibuzo mayelana nokuthi yini eyenza ukudla okuthile kube okubabayo, nokuthi kungani abanye abantu bethanda nje ukukudla.

Ngokombiko oshicilelwe yiLive Science, ukudla izinongo kuhambisana nokuzwa izinga lokushisa, yingakho zingafakwanga ohlwini lokunambitha okujwayelekile okuhambisana nokumuncu, okubabayo, okumnandi nokunosawoti omningi. Ngaphezu kwama-receptors okunambitheka, ulimi lubamba ama-receptors okushisa ahlukahlukene, amanye awo akhuthazwa ukudla okubabayo ukuze enze ukuzwa okushisayo okungokoqobo. Ngakho-ke akulona ihaba ukusho ukuthi ukudla kwaseNdiya noma kwaseThailand kunezinongo noma “kunokushisa” okuthile.

I-Capsaicin iyikhemikhali “eshisayo” eshisa ulimi. I-capsaicin ivela kupelepele oshisayo, kusho uJohn Hayes, umqondisi weCentre for Sensory Assessment ePenn State, owakha ikhemikhali njengemetabolite yesibili ukuvikela ezidla ezinye.

I-thermoreceptor olimini

I-Capsaicin ibopha isamukeli sezinga lokushisa olimini okuthiwa i-TRPV1. I-TRPV1 ilawulwa amazinga okushisa acishe abe ngu-40 °C nangaphezulu. Kodwa lapho ukudla okubabayo kufakwa nge-capsaicin, i-molecule ibophezela kuma-receptors futhi inciphise amandla awo okwenza kusebenze. Ngamanye amazwi, uHayes uyachaza, i-capsaicin ikhohlisa isamukeli ukuthi sithumele izimpawu ezivuthayo ebuchosheni ngamadigri angu-33 nje kuphela. Ngakho umuntu uzwa sengathi umlomo wakhe uyavutha nakuba izinga lokushisa lomlomo licishe libe ngama-degree Celsius angu-35.

I-piperine ekupelepele omnyama kanye ne-pH ephansi kaviniga nakho kungabangela indlela "eshisayo" ye-TRPV1. Nakuba, i-allicin etholakala ku-garlic, i-wasabi, namafutha e-mustard ihlangana ne-receptor ehlukile yokushisa ebizwa ngokuthi i-TRPA1.

ukuziphatha engozini

UHayes wathi: “Umugqa ohlukanisayo uwukuthi abantu bawukuphela kwezilwane ezikujabulela ngempela lokhu [umuzwa wokusha].” “Izilwane eziningi [ziyahlehla] ekuqhubekeni zizwa ukunambitheka okushisayo.”

Kunemibono eminingi yokuthi kungani abantu bejabulela ukudla okubabayo naphezu kokuhlangenwe nakho okubuhlungu ngezinye izikhathi. UHayes uthe ithiyori enamandla ihlobene nengcuphe kanye nomvuzo. Ucwaningo lwango-2016 ephephabhukwini i-Appetite lubonise ukuthi ukuziphatha komuntu engozini kwakuyisibikezelo esihle sokukhetha kwabo ukudla okubabayo. Uma umuntu ethanda ukugibela ama-rollercoaster noma ukushayela ngokushesha emgwaqeni onomoya, bavame ukuthanda amaphiko ezinkukhu ezibabayo.

Ingozi ekhawulelwe

Konke kuncike ekutheni uthola uhlobo oluthile lomvuzo noma umfutho ovela ezinhlungwini noma engcupheni, omunye umcwaningi awuchaza njengokuyenga kokudla okubabayo wukuthambekela kokuthatha “izingozi ezivimbelayo.” UHayes uthe ayikho i-neuroimaging noma idatha yokuqinisekisa izindlela eziqondile ezisebuchosheni zanoma yimiphi yale micabango.

ubudoda obubonwayo

Ukusetshenziswa kokudla okubabayo kungase kubalulwe nezici zobuntu eziqiniswa emaqenjini athile omphakathi noma amasiko. Ucwaningo lwango-2015 olwanyatheliswa ku-Food Quality and Preference lwathola ukuthi amadoda e-Pennsylvania maningi amathuba okuthi kunabesifazane agqugquzelwe izifiso zangaphandle noma zomphakathi zokudla okubabayo. Ngakho kungase kube nokuhlobana phakathi kokuhalela ukudla okubabayo kanye nobudoda obucatshangwayo. Ezinye zezifundo zokuqala ngokuthandwa kokudla okubabayo zabonisa ukuthi ukusetshenziswa kokudla okubabayo kwakuhlobene nombono wobuvila. Kodwa-ke, awukho umehluko ongatholakala ekukhetheni ukudla okubabayo phakathi kwabesilisa nabesifazane kusampula yaseMexico.

Ukupholisa ezindaweni ezishisayo

Omunye umbono, uNolden uthe, ukudla okubabayo kungase kunikeze inzuzo yokuziphendukela kwemvelo ezindaweni ezishisayo, ephawula ukuthi abanye ochwepheshe bacabanga ukuthi ukudla okubabayo kwakubalulekile kulezi zifunda ngoba kubangela ukujuluka futhi ngaleyo ndlela kuba nomphumela wokupholisa.
"Kukhona nengxenye yofuzo engakahlolisiswa ngokugcwele," kusho uNolden. Kuyaziwa ukuthi uma kudliwa ukudla okubabayo kakhulu, umuntu uphelelwa yimizwa ngenxa ye-capsaicin.

I-Physiology nokuziphatha

Kodwa abanye abantu bazalwa nama-capsaicin receptors ahlukene noma angasebenzi kahle, okubanikeza ukubekezelelana okuphezulu kwesinongo kusukela ekuqaleni, ngokocwaningo lwango-2012 olwanyatheliswa kumagazini iPhysiology and Behavior. Umehluko omkhulu ekuthandeni ukudla okubabayo ukuhlukahluka kofuzo, kusho uNolden.

Kubantu abalahlekelwe umuzwa wabo wokunambitha, ukudla okubabayo kungaba isango lokujabulela ukudla. Isibonelo, ukwelashwa ngamakhemikhali okunikezwa iziguli ezinomdlavuza kungashintsha amangqamuzana enzwa yokunambitha emlonyeni, okusho ukuthi ukudla kungase kunambithe ababayo, okusansimbi noma okuhlukile kunangaphambili.

Ukufakwa kwayo yonke imibono

Njengoba ukudla okubabayo kutholwa ama-receptors okushisa hhayi ngama- taste receptors, ukuzwa ukushisa kusengazwakala. Eqinisweni, olunye ucwaningo lubonisa ukuthi iziguli ezinomdlavuza zibheka ukudla okubabayo ukuze zandise ulwazi lwazo lwezinzwa phakathi noma ngemva kokwelashwa ngamakhemikhali. Ngokuvamile, ukukhetha ukudla okubabayo kungase kungachazwa ngenye yale mibono. Ukukuhlanganisa konke, kusho uNolden, cishe kuyindlela yokufinyelela esiphethweni esiphelele.

Izibikezelo ze-horoscope zika-Maguy Farah zonyaka ka-2023