Iingcali zenzululwazi zifumene inkcazo yenzululwazi yokuba ininzi yoshishini yindoda, kwaye abafazi, njengomthetho, abathandi ukubeka umngcipheko ngemali baze benze izinto ngokucophelela, bengathandi ukulahlekelwa yizinto abanako. Nangona kunjalo, njengokuba uyazi, nabani na ongenamngcipheko, akayiphuzi i-champagne kwaye engenazo mngcipheko akukho mvuzo omkhulu.
Kubonakala ukuba ukufaka imali engozini kwenza abantu bangabi nantoni ngaphezu kwe-hormone testosterone - ininzi yamadoda onke ama-hormone akhiqizwa emzimbeni womntu.
Ekuhambeni kweso sifundo, abaphandi bafumanisa ukuba kukho ulwalamano olusondeleyo phakathi komxholo we-testosterone egazini kunye neqondo lokubangela umngcipheko wezezimali.
Ukuze kufuneke, izazinzulu zenza uvavanyo olubandakanya abafundi abangama-89 abavolontiya abaneminyaka eyi-18 ukuya kwe-23. Kubo, ukulungiswa komngcaka ngemali kwahlelwa, ngexesha apho abantu abatsha bekhululekile ukulahla imali njengoko bafuna.
Kule meko, abathathi-nxaxheba kulo mvavanyo bawathatha amasampuli amathanga ukuvavanya umxholo we testosterone emzimbeni. Kuye kwavela ukuba abo bafundi abanomxholo we-testosterone wamathambo ayenomngcipheko ophezulu ngokuphindaphindiweyo ngo-12% kunabo babenqanaba eliqhelekileyo le hormone.
Ngendlela, i-testosterone ayivelwanga kuphela kumadoda, kodwa nakwabasetyhini. Kwi-body body ye-testosterone ihlanganiswe ngama-ovari, ukuguqula kwiiseli ze-follicle yokuvuthwa kwi-estrogens, kwaye ikhuthaze ukuphuhliswa kweentlanzi zamathambo. Ngexesha lokukhulelwa, ukugxininiswa kwimizimba yowesifazane kwanda. Nangona kunjalo, ukukhushulwa kwe-hormone eyongezelelekileyo yi-adrenal glands kubangela izifo ezihlukahlukeneyo.