Asayansi apeza malingaliro a sayansi kuti amuna ambiri amalonda ndi amuna, ndipo akazi, monga lamulo, sakonda kuika pangozi ndalama ndi kuchita zinthu mosamalitsa, osafuna kutaya zomwe ali nazo kale. Komabe, monga mukudziwira, aliyense amene sachita zoopsa, samamwa champagne ndipo alibe chiopsezo chachikulu palibe ndalama zambiri.
Zili choncho kuti ndalama zoopsa zimawapangitsa amuna kukhalabe oposa testosterone - mahomoni ambiri a mahomoni onse opangidwa m'thupi la munthu.
Phunziroli, ofufuza adapeza kuti pali mgwirizano wofanana pakati pa testosterone m'magazi ndi kukula kwake kwa ndalama.
Pofuna kudziŵa, asayansiwo adapanga mayesero okhudza ophunzira odzipereka 89 a zaka 18 mpaka 23. Kwa iwo, bungwe linalake lakutchova juga la ndalama linayambitsidwa, pomwe achinyamata anali ndi ufulu kuti atenge ndalama monga momwe amafunira.
Pachifukwa ichi, anthu omwe adayesera kuyesa ayesa zitsanzo za sativa kuti aone zomwe testosterone zili m'thupi. Anapeza kuti ophunzira omwe matchulidwe a testosterone anali oopsa kwambiri kuposa 12% kuposa omwe anali ndi mlingo wokwanira wa hormone.
Mwa njira, testosterone imapangidwa osati mwa amuna okha, komanso kwa amayi. Mu testosterone thupi lachikazi limapangidwira ndi mazira ambiri, kusandulika mu maselo a follicle yakucha mu isrogens, ndipo amalimbikitsa chitukuko cha mazira am'mimba. Pakati pa mimba, kuika thupi m'thupi mwa mayi kumawonjezeka. Komabe, kuchulukitsidwa kwa ma hormone ndi adrenal glands kumabweretsa mavuto osiyanasiyana.