Nyika yajaira kuti vamwe vanokwezvwa nevarume, vamwe nevakadzi, uye vamwewo varume nevakadzi. Kunyangwe iyo yekupedzisira sarudzo ingangove isipo - iyi ndiyo mhedziso yeAmerican neCanada vaongorori, sezvakataurwa neThe New York Times.
Masayendisiti kubva kuNorthwestern University muChicago uye Center for Mental Health muToronto (CAMN) vakakoka 101 vechidiki vechirume vakazvipira kuti vadzidze, avo makumi matatu nevasere vaizviona sengochani, makumi matatu hetero- uye 38 vanoita zvepabonde. Vakaratidzwa mafirimu anonyadzisa ane varume kana vakadzi uye akayera chinangwa chemuviri zviratidzo zvekumutswa.
Zvakazoitika kuti avo vaizviona sevari kuita bisexual vakaita zvakasiyana kune varume nevakadzi: zvikamu zvitatu muzvina zvavo zvakaratidza kumutswa muzviitiko zvakafanana nengochani, vamwe vese vaive physiologically isingazivikanwe kubva kune heterosexuals. Bisexual reactions hazvina kuonekwa zvachose. Muchiedza che data idzi, bisexuality inoita sekuzvinyengedza.