Pfupisa nyaya yacho:  Bhuku rinonzi Sex by Numbers: What statistics can tell us about sexual behavior rakabudiswa vhiki ino uye rinofanira kuverengwa nomunhu wose anofarira kuziva kuti ndiani chaizvoizvo anoita chii, kupi, rini uye sei pamubhedha. Munyori wacho, David Spielgalhalter, purofesa weCambridge University, anotanga kuongorora mashoko akasiyana-siyana ezvepabonde uye kupatsanura ngano kubva muchokwadi. Zvakaita kuti ndiitewo saizvozvo. Dzorera pasi kuti uone vhidhiyo. Masayendisiti akaongorora ongororo 20 dzakasiyana-siyana dzokukura kwepenisi, kubatanidza zviyero 15 521 zvepenisi zvinobva munyika yose akawana migumisiro inoshamisa. Sezvo pasina rumwe rutivi rwomuviri womunhu rwakafukidzwa zvikuru nengano uye ngano kupfuura rutivi runokosha zvikurusa rwomurume, kwakaratidzika kuti nhengo yomukomana ndiyo yakanga yakafanira zvikuru kudzidza. Izvi ndizvo zvinotaurwa nokutsvakurudza kwazvino uno: Saka, chaizvoizvo iri masendimita matanhatu here? Chinyorwa chitsva chiri muBritish Journal of Urology International chakavakirwa pamigumisiro yamasayendisiti akaongorora fundo 20 dzakasiyana-siyana dzokuyera ukuru hwepeni, kubatanidza zviyero 15 521 zvepeni zvinobva kumativi ose enyika. Chinonyanya kukosha ndechokuti, zvaingobva pazvidzidzo zvakaratidza kuti nhengo yomunhurume yainge yakayerwa nenyanzvi yezvokurapa yakadzidziswa (zvinoshamisa kuti varume havanyatsotendeseki uye havanyatsorurami pavanenge vachienzanisa nhengo yomunhurume ivo pachavo). Mugumisiro wacho: varume vazhinjisa vanowira mukati mamasendimita mashomanene bedzi omumwe nomumwe, vazhinji vavo vachiyera anenge masendimita 5,2 pakureba apo vanomiswa nechinhambwe chemasendimita 4,6. Kana achida kuzviita amene, nzira yakarurama yokuyera nayo nhengo yomurume ndeyokushandisa tepi yokuyera yemachira, kwete runyanga rwakatwasuka. Anofanira kuyera apo yakamira uye kuyera rutivi rwakachengeterwa dumbu rake, achisundira tepi pasi kuti isundidzire pahuro (saka haasi kuyera mafuta!). Tracey anotsvakurudza nhau dzakasiyana-siyana dzepabonde uye anoparadzanisa ngano nezvokwadi. Avhareji yenguva iri pakati pokupinda nomukadzi nomurume wake uye kubuda ropa (kune vakaroorana vane mitezo yevatano yakasiyana) maminitsi mapfumbamwe. Izvi ndizvo zvakabuda muongororo yakaitwa kuEurope yakaitwa kuvanhu 1 100 vakaroorana vanobva kunyika 44. Varoorani vose vakaedza vatano kanenge kaviri pavhiki kwevhiki masere uye vakashandisa wachi yokumisa, vachidzvanya pairi...
Mumwe purofesa wepaUniversity yeCambridge akanyora bhuku pamusoro pezviverengero zvepabonde. " Zvepabonde Nenzira Yokuverenga " zvinoongorora kuti ndechipi chaichoicho chiri ukuru hwepeni hwepakati nepakati. Tracey Cox anotarira zvawanikwa zvinoshamisa.