Isifundo sibonisa ukuba iiNtombi zeeNtombi ziba ngcono ngakumbi kunokuba i-Boy Boy Twins
Iimfazwe phakathi kwezesondo ziye zahlaselwa ngokungapheliyo, kodwa isifundo sinikezela ngokuthe ngqo kumabhinqa. Abaphandi e-Helen Schneider Hospital yabaseTyhini kunye neSackler School of Medicine kwiYunivesithi yaseTel Aviv e-Israel kutshanje baphelise ukuba iziphumo zokukhulelwa ngamawele ziphuculiswa xa ubuncinane iimbini ziintombazana. Uphononongo luka-2009 lwavavanya ngaphezu koku-2 500 ukukhulelwa kweengama ezimbini kwaye zahlukezela iziphumo zentombazana-intombazana, intombazana nentombazana, kunye namawele amakhwenkwe.
Yintoni eyahlukileyo phakathi kwamabhinqa amabhinqa kunye namawele amabhinqa?
Abaphandi bafumanisa ukuba iziganeko zokuthunyelwa kwangaphambili ziphezulu kwiinkwenkwana zenkwenkwana, kwaye iintsana zazinenani eliphantsi lokuzalwa kunye namazinga okukhula okuphantsi xa amabini amawele ayengamadoda. Ngelo xesha, amawele amantombazana ayenomncinci wokuphefumula kunye neengxaki zeengqondo. Okuthakazelisayo, iziphumo zibonise ukuba kuthatha enye intombazana ukuba iphucule umphumo kwinkwenkwe; ngaphaya kwebhodi, abafana abanamawele amathandathu baphumelele ngakumbi kunamaqoqo efana namawele.
- Umngcipheko wokuthunyelwa kwangethuba (phambi kweeveki ezingama-31) wawuphezulu kunamawele angamaduna.
- Le ngamawele amawele ayenesisindo esiphantsi sokuzalwa kunye nesantya sokukhula esezantsi.
- Iintombi zamantombazana zazinengxaki ezimbalwa kunye nobuchopho babo kunye nemiphunga.
Abaphandi bacacise "into ephosakeleyo yomntu," ichaza ukuba ukuthutha ukuphazamiseka kwezidalwa ze-hormone ukusuka kumntwana wesisu kunempembelelo embi kwenye iwele. Baye bafundisa ukuba abesilisa banokukhuphisana nezixhobo ezinokondla ngokubhekiselele kumntwana wesisu, okhula ngokukhawuleza, ukwandisa inzuzo yesisindo somntwana.
Ngaba Ndimele Ndikhathazeke Ngomntwana Wamabini?
Olunye uphando lweintsana ezisengaphambi kwexesha lubona ukuba iintsana zentombazana zinomsebenzi. Ngokomzekelo, ekuhlolisweni kweentsana ze-singleton, abafana babenamazinga aphezulu kakhulu kwezinye iingxaki, nangona zihlala zibala ngaphezu kwamantombazana ekuzalweni. Iziganeko eziphezulu zokukhubazeka nazo zadibana nabesilisa.
Nangona kunjalo, imingcele emininzi edibaniswe nale sifundo yawa mawele amkelwe. Kwelinye, ifundela amawele kuphela ngamapentecenta ahlukeneyo, ngaphandle kwecandelo lamawele e-monozygotic . Kwakhona, alukwahluli phakathi kweempepha ezithathwe ngokukhawuleza okanye ngokuncedisa ukuzala, ezinokuchaphazela umphumo wokukhulelwa. Ngaphezu kweyesibini kweyesithathu kweeswele ezibekwe kwisifundo zazizibini zowesilisa namabhinqa, malunga ne-15% yimihla ngemizimba efanayo. Ekugqibeleni, uhlobo oluthile lokufundwa kweso sifundo lunokuthi lube ngumxhatshazo. Uninzi oogqirha baya kuvuma ukuba iziphumo zezifundo akufanele zitshintshe indlela ukukhulelwa kwezibini kuthathwa ngayo.
Umthombo:
Melamed, N., Yogev, Y., kunye noGlezerman, M. "Impembelelo yoBustile be-Fetal kwisiPhumo soKhulelwa kweziTyhulwa zeTwin." I-Obstetrics & Gynecology , ngoNovemba 2009. iphe. 1085-1092.
Peacock, J., et al. "Isiphumo seNtsholongwane kunye neNtsana kubaNtombi kunye namantombazana azalwa ngokukhawuleza." Uphando lwezilwanyana , ngoJanuwari, 2012. pg. 305-310.