Ingabe kuyiqiniso ukuthi lezi 5 izinto ukuthonya ubulili wosana?

Umfana noma intombazane? Lo mbuzo ezithakazelisayo omunye owesifazane ekhulelwe, kodwa futhi upapa esizayo, futhi zonke izihlobo eziseduze nabangane. Sambuza ukuthi ngaso sonke isikhathi, futhi kule nkathi yobuchwepheshe eziphambili, akukho okushintshile.

Ubuchwepheshe ezweni lanamuhla bayatfutfuka ngejubane elikhulu, lokhu kusebenza futhi izimoto US. Odokotela u-100% ukuchaza umntwana phansi. Abantu abajwayele ukuvakasha kuyona e-US, hhayi kuphela esimweni lapho udinga ukuthola ozozalwa. Kuyadingeka ukuthatha cwaningo ukuhlonza izifo ezihlukahlukene usana isikhathi esifushane noma ukuqinisekisa impilo yakhe. Ngokwezibalo, isilinganiso ukubeletha abafana namantombazana kuyinto 50/50. Ososayensi hypothesize ukuthi kukhona izinto ezithile ezithinta ubulili womntwana.

Ngo kokukhulelwa kwesibeletho

Abacwaningi e-Australia bathi ingane phansi wakhulelwa ngosizo ubuchwepheshe zokuzala, kuyinto encike ngqo kwi indlela. Ingxenye ukubeletha besilisa siye sancipha ngamaphesenti angaba 49% lapho ezwa lo mbhangqwana ukhethe inqubo esibelethweni cleavage esiteji, okungukuthi, ngemva kwezinsuku ezimbili noma ezintathu emva kokukhulelwa. Amaphesenti wayesema 56 ibhanela kokukhulelwa kwesibeletho, uma i-embryo ibekwa kwesibeletho ngemva kwezinsuku ezine kumiswa. I Ayaziwa imbangela yaso yangempela. Cishe, lokhu kungenxa ubude besikhathi i-embryo uchitha egunjini lokucwaninga esibhedlela.

ukudla

Ukucwaninga kososayensi olwenziwa ngo-2000, kusho ukuthi abesifazane, ngokuvamile abangayithandi badla kilojoule angaphezu, badla iphalishi kwasekuseni, ecebile potassium, bona wabeletha abafana ikakhulukazi. ososayensi French baye ngisho athuthukile uhlobo olukhethekile lokudla ukuthi inegama elifanayo. Umuntu wesifazane kufanele udle ukudla okunothile potassium ne-sodium okukhulelwa umfana. Kodwa impendulo yombuzo othi ngabe kuphephile impilo umama okhulelwe, uhlala kungalungiswanga.

Ungacabangi ukuthi uma ukunciphisa inani kilojoule onawo nomndeni wakho ozozalwa intombazane. Into ebaluleke kakhulu - umama okhulelwe kufanele ukudla ngendlela efanele, ube nempilo.

ososayensi American baye bathi owesifazane phambi ekuhlaleni kwesisu kufanele adle imikhiqizo yobisi, inyama ebomvu, inhlanzi kanye nezithelo ezintsha kanye amajikijolo okukhulelwa intombazane. Kuyadingeka ukuba ugweme imvubelo, isilinganiso sikasawoti kanye nokudla pickled. Umzimba elicwile calcium. Kodwa ungakhohlwa ukuthi ukudla kumele silinganisele futhi ephelele, ukuze ingane yazalwa enempilo.

Ososayensi baye hhayi kungase kutholakale ukuthi ukudla ezahlukene yakha ingane phansi. Okokuqala, kudingeka ulandele izincomo udokotela wakhe. Ukukhulelwa - ngesikhathi lapho umzimba udinga uhlobo olukhethekile lokudla.

umlando Umkhaya

Abantu ngokuvamile azame ukuqagela ubulili womntwana esekelwe inombolo abafana namantombazana abazalwa ngaphambi. Futhi lapho konke kusenjalo, ukukhanya livela intombazane ekhaya, lapho phambi ukuthi kwaze kwadlula izizukulwane ezine kanti omunye wazalwa eseshonile abafana kuphela, imfundiso kuziwa engelutho. Eqinisweni, kukhona ezinye imindeni nge nezici ezithile ezithile zofuzo. Kodwa izifundo ezishicilelwe eqinisekisa lokhu, akukho. ubufakazi Iyatholakala busikisela ukuthi leli nje ngengozi.

izinsuku ekuhlaleni kwesisu

Baby phansi futhi kungathinta ngesikhathi sokuhlala kwesisu. Kunobufakazi bokuthi i-asondeze bezoziphatha ukuba yi-ovulation, aba maningi namathuba okuba ukuba azale umfana. Lokhu kungenxa yokuthi isidoda abahlebayo Y-chromosome, siphile ukuphila isikhathi esifitjhani begodu maningi mobile kuka isidoda ne X chromosome. Ngakho-ke, uma ufuna ukuthola ukhulelwe futhi ubelethe intombazane, kungcono ukuhlela bezoziphatha 3-4 izinsuku ngaphambi ukukhiqizwa kwamaqanda. Lo mbono ungase futhi afakwe imibuzo. Ngo-1995, ososayensi baseBrithani benza ucwaningo bese akazange abuthole ubufakazi ngoba lo mbono.

Izinga lokucindezeleka nengcebo

Ngo-2013, ososayensi baseGreece benza ucwaningo lapho kwatholakala ukuthi phakathi neminyaka emibili ngemva kokuzamazama komhlaba esiqhingini Zakynthos inkomba wenzalo besilisa yehlile kakhulu. Abacwaningi basikisela ukuthi obucayi xaxa Y-chromosome wahluleka basinde ngezikhathi okusezingeni eliphezulu ukucindezeleka kwengqondo. Ngakho, singaphetha ngokuthi ukucindezeleka kungathinta izinga lama-hormone emzimbeni kamama esizayo.

Ososayensi base-Oxford University olwenziwa yokutadisha kwazo. Baphetha ngokuthi abesifazane abaye bezwa ngaphambi Conception ukucindezeleka njalo aba maningi amathuba okuba uzozala intombazane. Okubizwa ngokuthi hormone yokucindezeleka ayivumeli ukungena umbungu besilisa esibelethweni. Ungakhohlwa ukuthi isidoda nge-Y-chromosome ucindezelekile eziphilayo lincane kakhulu.

Futhi ngo-2013, omunye wokuziphilisa ukushicilela izindlu eshicilelwe umbono uthi emndenini indlalifa abacebile ukukhanya kokuphuma abafana. Cishe, yokuthi amadoda abangazange kufanele bazikhandle ukuze uthole imali eningi, angaphansi ukucindezeleka kuyancipha. Nokho, lokhu kumane nje kuyinkolelo-mbono, alinaso kwezesayensi.

Ukuze unciphise ukucindezeleka, ababezoba abazali abafisa ukuba azale umfana ekuthola kulula ukwenza i-yoga.