Waa maxay sababta dumarka yeelan karaan orgasms?

Waxaa dhacaya maalin kasta oo adduunka oo dhan, laakiin saynisyahano weli ma oga wax badan oo ku saabsan bixida dumarka. Iyadoo muran chemistry shahwada oo ku saabsan haween ah ayaa la degay, weli si buuxda cadda sida noocyo badan oo orgasms soo maray by haweenka.

Laakiin ugu durugsan ee arrinta oo dhan la xaliyey, kuwaas oo: waa maxay sababta evolutionary for bixida dumarka? Seynisyahanno ka University Yale aaminsan yihiin in ay ka heli jawaabta saxda ah.

Baadhitaan cusub by saynisyahano iyo natiijooyinka ay

Markii hore waxa la filayay, in bixida dumarka u fartaan sidii sifo a in uu weheliyo, idinkoo Junub ah lab, oo taasuna waxay ahayd nooc ka mid ah la qabsashada in ay wada-hawlgalayaasha dhiiri in ay wada joogaan oo ku sii dabajiraan. Oo hadda cilmi-helay in Junub ah dumar mar ahaa keeb muhiim ah noolaha loo baahan yahay ugxan.

Inta lagu guda jiro idinkoo Junub ah, jidhka dheddiga soo saartaa laba hormoon - oxytocin iyo prolactin. The dheddigga ah ee nuujiya mandheerta duurjoogta ah, noocan ah dhaqdhaqaaqa dheecaan hormoon sababa bilawga ugxan, sida mid aan uurka noqon lahayd wax aan macquul aheyn. Sidaas darteed, waxaan dhihi karaa in lab iyo dhaddig jirka ee xoolaha u wada shaqeeyaan si ay u bilaabaan ugxan.

Waxay u badan tahay in hab ay asal ahaan waxaad fartaan in aadanuhu ay tahay sabab la mid ah sida in xoolaha. Waqti ka, haweenka ayaa soo saartay awood u leh inay ovulate, iyadoo aan loo eegin dhinaca hawlaha galmada lab. Sidaas darteed of shaqo this hormoon waxay ahayd aan loo baahnayn oo noqday miduu yahayba, laakiin waxay ku nagaadeen bayoolajiga dumar ah sababtoo ah doorkeeda a galmada wacan farsamo sare.

Waa maxay samayn waxbarashada hore?

Baadhitaanno hore ayaa diiradda lagu saaray xogta ee biology aadanaha iyo badalaada sifo. horumar ah ee ay ka soo jeedo aan la tixgeliyo.

Indeed, waxbarashada hore ayaa tilmaamay in bacriminta haweenka ee kuma xirna ay ficil galmo. Ka dib markii macquulka this, waxaa la soo gabagabeeyey in jidhka dheddiga marnaba door toos ah guusha taranka. Sidaas daraaddeed, lid ku ah waxa uu horay u sheegay, baaritaano badan, waxaannu ku tirinnaa karaa in jidhka dumar ah ayaa u qoondeeyey si ay uga caawiyaan soo saari wey siman oo leh lab ah.

Ujeedada evolutionary ee ah lab iyo dhaddigba orgasms

idinkoo Junub ah Lab ayaa goolka cad, marka viewed marayo soo askunmay ee doorashada dabiiciga ah. Ujeeddada - inuu ka tago sida ugu badan ee suurto gal u hadha. Galmada iyo dhalmada waa shaqada ugu muhiimsan ee hiddo muruqa, ma aha oo kaliya in aadanuhu laakiin sidoo kale in dhammaan xayawaanka.

Si kastaba ha ahaatee, ciidamada wadista ee horumar ah bixida dumarka ma aha sidaas cad. cilmi badan ayaa rumaysan in la horumariyo sida shil by-saarka ee idinkoo Junub ah lab. Isla mar ahaantaana, culimada kale ayaa soo jeedinaya in kobciyaa nin naag la taabto, bixinta iyada hiddo kala iibsiga ka mid ab kale. Cilmi-Qaar ka mid ah ayaa sidoo kale soo jeedinaya in pulsations jiibta, oo dhaca inta lagu jiro bixida dumarka, caawin ururiyaan manida ee ilmo-galeenka.

New dhawaado saynisyahano

Seynisyahanno at University Yale in ay daraasadda isticmaalay hab is barbardhig bayoolaji, oo waxay soo jeedisay in si qarsoodi ah oo ka mid ah asal ahaan evolutionary of bixida dumarka waa in la sii daayo hormoonnada in uu weheliyo. Waqti ka, wax soo saarka hormone this waxa uu noqday ku tacaluqda ay u noolaadaan aadanaha iyada oo loo marayo dhalmo ee Farac, laakiin, si kastaba ha ahaatee, weli waa kiiska.

Dabcan, xaqiiqda ah in bixida dumarka waxaa mar dambe u ciyaaro "ayuu u faa'iido badan" doorka taranka macnaheedu ma aha in ay tahay aan waxtar lahayn. Sex waxaa loogu talagalay ugu horeyn raaxo loogu talagalay, oo tanuna waa ay shaqada ugu weyn ee qarniga 21aad.