COMMENTS: Masturbation zuwa wani sabon tauraron tauraron dan adam ya karu da karfin maniyyi da maniyyi mai motsi. Hakanan, lokacin da ya dauki maniyyi ya ragu sosai. Sakamakon Coolidge yana kasancewa a matsayin mafi girman aikin kewaya yayin da aka fallasa shi ga sabon abokin jima'i. Anan, sabon abu na jima'i shima ana fassara shi zuwa mafi kyawun maniyyi da saurin inzali, yana sanya kowane "karin-hada dandazon" ya fi inganci, kuma ya fi tsada.
Kimiyyar Kimiyyar Juyin Halitta
Yuni 2015
Paul N. Joseph, Rakesh K. Sharma, Ashok Agarwal, Laura K. Sirot
Abstract
Maza a yawancin jinsunan bambancin bambanci rarraba kwayar halitta da ruɓuwar taro bisa ga wasu canje-canje na zamantakewar al'umma, ciki har da gagarumar gasar zina da matsayi na haihuwar mace. A wasu nau'in, maza sukan rage haɗin su a yawancin nau'i ko nau'i a kan maimaitawar matakan tare da mace daya kuma kara yawan wannan zuba jari a lokacin da mated zuwa mace. Mun jarraba sakamakon abubuwan da ake samu na motsa jiki da kuma sabon abu a kan fitattun suturar maniyyi a cikin mutane. Mun bincika samfurori da aka samo ta hanyar al'ada da kwarewa daga fina-finai na jima'i. Lokacin da maza aka nuna su a matsayin mace daya sau shida, ba mu ga canza canji tsakanin matakan farko da na shida ba ga mace daya. Duk da haka, ƙaddaraccen adadi da jigilar kwayoyin motsi sun ƙãra yawan ƙaruwa yayin da maza aka nuna su ga mace. Lokaci zuwa musayar ma ya rage muhimmanci akan daukan hotuna ga mace. Saboda haka, sakamakonmu yana nuna cewa mazajen halayyar maza suna haɗuwa da sauri kuma suna zuba jari a cikin ejaculates tare da yara na mata.
KASHE DA KASHEWA
Nazarin Nazarin Masana kimiyyar Wooster yana nuna wa'adin inganta ingantaccen haihuwa
Haɗin ilimin dalibi ya ba da bege ga ma'aurata da suke ƙoƙari suyi ciki
WOOSTER, Ohio - Lokacin da ma'aurata suka sami matsala game da juna biyu, yakan zama mace ce wacce take jure bincike mafi girma, amma wani sabon bincike da masana kimiyya suka yi a Kwalejin Wooster sun nuna cewa ana iya watsi da ƙarancin maza yayin da maza za su iya inganta adadin maniyyinsu.
Paul Joseph, wanda ya kammala karatun digiri a 2014, da Laura Sirot, mataimakiyar farfesa a fannin ilimin halittu a Wooster, tare da masu bincike a Cibiyar Kula da Lafiya ta Cleveland, sun hada gwiwa kan aikin, wanda yayi la’akari da "Coolidge Effective," sabon abu ne da aka gani a dabbobi masu shayarwa. nau'in da maniyyin namiji zai iya raguwa tare da tsawaitar bayyanar hotunan mace ɗaya amma daga baya ya haɗu da bayyanar hotunan wata mace Binciken ya nuna cewa maza, kamar maza a cikin wasu nau'in dabbobi, sun saka hannun jari (watau samarwa. mafi girma mai girma da yawa a cikin maniyyi mai yawan gaske) idan aka gabatar da karamin iri daban-daban. Abubuwan bincikensu an buga su a cikin batun Yuni na Kimiyyar Kimiyyar Juyin Halitta.
Yusufu da Sirot sun buga hoton yanayin wasan kwaikwayo tare da matan da suka saba da saba wadanda suke amfani da hotuna daban-daban sannan kuma suka bincika samfuran maniyyi daban-daban. "Sakamakon bincikenmu ya nuna cewa lokacin da aka nuna hotunan wata mace ta maza, maza sun yi saurin hauhawa da yawan fitsari wanda ke da yawan maniyyi," in ji Joseph. "Wannan ya nuna cewa maza sun sami damar bambance tsakanin matan da suka ga kuma samar da manyan ejaculates tare da karin maniyyi don hotunan wata mace."
Binciken ya kuma samar da sabbin bayanai game da ilimin halitta da kuma ilimin halayyar dan adam, amma aikace-aikacen magungunan haihuwar maza na da matukar muhimmanci, in ji masanan kimiyya biyu. Joseph ya ce, "Rashin haihuwa na iya yin kamuwa da cuta tun lokacin da aka samar da abubuwan fashewa domin yin nazari kuma don dalilan haihuwar da ake haifar da su ne ta fuskoki daban-daban guda biyu," in ji Joseph. “Ejaculates da aka kirkira don dalilai na haihuwa ana samun su ne ta hanyar macen da ta saba, yayin da wadanda ake bincika su a wuraren asibiti ana samun su ne yayin kallon hotunan dake nuna mace mai labari. Don haka, abubuwan lalata abubuwanda ake samarda a dakunan shan magani na iya zama mai inganci fiye da yadda aka saba, wanda zai iya rufe duk wasu matsalolin haihuwar da ake samu a dakin kwana. ”
Yusufu da Sirot suna fata cewa sakamakon zai samar da hankula akan hanyoyin da za a inganta ƙin ganewar asali da kuma magance matsalolin haihuwa, don haka ya inganta chances don tsarawa, yayin da yantar da mata matsala da kuma hanyoyin magance cutar.
ABUBUWA
Dalilin da yasa Sabuwar Jima'i Ya Yarda Mutum Wani Masihu Mai Girma
Aug 3, 2015 04: 01 PM By Lizette Borreli
Ba a ba da sanyayi ba a koyaushe don maza. Yawan, motsi, da kuma tsari duk suna taimaka wa lafiyar kwayar cutar, kuma a cewar 'yan kwanan nan binciken buga a mujallar Kimiyyar Kimiyyar Juyin Halitta, waɗannan halaye na iya canzawa tare da sababbin abokan jima'i.
"Abubuwan da muka gano shine na farko da ya nuna cewa halayyar maza da haɓakawa ta maza suna canzawa wajen amsawa ga matukar halayyar mata," masu binciken, daga Kwalejin Wooster a Ohio, sun rubuta.
Masanin ilimin lissafin namiji da halayyar da aka sani za a rinjayi su lokacin da aka nuna su ga sababbin abokan. A cikin 2000 binciken. -Arfafawar kai da kai, sabili da haka kewayewar azzakari, ya ƙaru yayin da maza suka gamu da sabon juzu'i na mata bayan sun saba da irin motsawar mata. Waɗannan binciken suna da alaƙa da ilimin kimiyyar lissafi na mutum, wanda ke aiki don haɓaka ƙwarewa a gaban sababbin mata, don haka inganta ƙwarewar sa na samar da zuriya.
Don binciken da ake ciki yanzu, masu bincike sun nema su gano yadda dabi'ar maza ta canzawa ta hanyar mayar da hankali ga sababbin matsalolin mata. Dukkanin 21 maza da mata tsakanin shekarun 18 da 23 an tattara su don kallon bidiyon bidiyo guda bakwai a cikin ɗaki mai zaman kansa kowane 48 zuwa 75 awa na 15.
Bidiyo shida na farko sun nuna ɗayan 'yar wasa da ɗan wasa ɗaya, yayin fim na bakwai yana da wata' yar fim daban amma mai wasan ɗaya. Kowane bidiyo ya ƙunshi shirin minti uku daga bidiyo mai tsayi na minti 20 kuma an sake kunna shi a maimaita har sai maza sun yi inzali.
An umurci mutanen da su rubuta lokacin da suka fara kallon fim, lokacin da aka kwashe su, da kuma duk abin da suke da shi a cikin tashar tarin. Masu bincike kuma sun tantance lokutan karuwa da yawa da kuma yawan motar motile daga kowanne ɗan takara. Idan wasu daga cikin mahallin ba su sanya shi a cikin kofin ba, ba a haɗa shi a matsayin wani ɓangare na bayanan ba.
Abubuwan da aka gano sun nuna cewa lokacin da ya dauki mahalarta ya fitar da maniyyi ya kasance tsakanin mintuna hudu da 21. Lokacin da ya zo kan fina-finai shida na farko, babu tasirin al'ada, wanda ke nufin maimaita kallon mace ɗaya bai ƙara ko rage lokacin fitar maniyyi ba. Koyaya, sun yi saurin fitar da maniyyi kuma tare da mafi inganci yayin kallon fim na bakwai, wanda ya haɗa da sabuwar mace.
Masu bincike sun yi zargin cewa wadannan mutane sun fi iya samarwa matsayi mafi girma don sabon motsa mata saboda dalilai biyu. Na farko, sun yi imanin cewa a hankula, maza sun riga sun hadu da kwan (s) ko kuma maniyyinsu ya adana ga matan da suka dace da su. Na biyu, wadannan abubuwan binciken suna da nasaba da batun gasar kwayayen maniyyi, wanda ke nufin gasar tsakanin maniyyin maza biyu daban-daban don takin kwai mace daya. Wannan ya fi faruwa ne a cikin karin-biyu - lokacin da mutane ke yin jima'i da wasu ba abokin auren su ba.
Jima'i na yau da kullun yana ba da haske fiye da sha'awar mutum ya yi jima'i da fiye da mutum ɗaya. Yana kuma shafar yadda namiji rashin haihuwa an bincikarsa kuma zai iya taimakawa wajen fasaha na haifa. Ƙarfafa halayen da suka fi kama da al'amuran al'ada, alal misali, zai iya inganta daidaitattun samfurori na rashin haihuwa, yayin amfani da sababbin matakan jima'i na iya inganta sakamako na fasaha na haɓaka.
Sources: Joseph, PN, Sharma, RK, Agarwal, A., & Sirot, LK. Mazaje Suna Fitar Da Manyan Jari Na Maniyyi, Morearin Maniyin Motsa Jiki, kuma da Sauri lokacin da aka bijiro dasu zuwa Hotunan Matan Mata. Kimiyyar Kimiyyar Juyin Halitta. 2015.
Koukounas E da R. R. Sauyewa a cikin girma na ƙyallen ido na eyesbink lokacin da ake ci gaba da haɗuwa da jima'i. Cibiyar Bincike da Farfesa. 2000.
;