In men and women sexual arousal culminates in orgasm, with female orgasm solely from sexual intercourse often regarded as a unique feature of human sexuality. However, orgasm from sexual intercourse occurs more reliably in men than in women, likely reflecting the different types of physical stimulation men and women require for orgasm. In men, orgasms are under strong selective pressure as orga...

This was a prospective study involving 371 mothers. The mean age of the mothers was 27.5 (.3.6) years with a mean years at school (Educational years) of 11.3 (2.9) years. All the mothers had previously breastfed at one of their infants for at least 6 months, while the mothers also breastfed their last child for an average (mean) of 10.3 (4.0) months. The overall mean of previous live births was...

OBJECTIVE To identify the human immunodeficiency virus (HIV)-related risk behaviors associated with HIV testing among US high school students who reported ever having sexual intercourse. DESIGN Secondary analysis of a cross-sectional study. SETTING The 2009 national Youth Risk Behavior Survey. PARTICIPANTS A total of 7591 US high school students who reported ever having sexual intercourse...

BACKGROUND Most of the sexually transmitted infection prevention programs fail to attend to the relationship type of individuals at first sexual intercourse and how it influences contraceptive behavior. STUDY DESIGN A national sample of adolescents (3084 females and 2745 for males) was analyzed to determine the associations between relationship types (committed, going steady and casual), use ...

BACKGROUND The number of people newly infected with human immunodeficiency virus (HIV) has been decreasing in sub-Saharan Africa, but prevalence of the infection remains unacceptably high among young people. Despite the alarming pervasiveness of the virus, young people in this region continue to engage in risky sexual behaviors including unprotected sexual intercourse. In developed countries, p...

OBJECTIVES To document prevalence rates for selected aspects of sexual behaviour among Cape Town high-school students and to conduct a survival analysis of age at first intercourse. DESIGN Cross-sectional survey. SETTING State high schools in Cape Town. SUBJECTS A multistage cluster sample of 2,740 grade 8 and 11 students at 39 schools. OUTCOME MEASURES Ever having had sexual intercours...

Sexual behaviour in forty mile schizophrenics on maintenance medication were studied. Authors observed that thirteen patients reported decrease in frequency of sexual thoughts, fifteen in frequency of intercourse. Eight patients reported decline in enjoyment of intercourse and six avoided sex.

BACKGROUND In Germany, immunization against human papillomaviruses (HPV) is free of charge for all females aged 12 to 17 years. Since HPV infection rates rise soon after first intercourse, immunization against HPV should be completed before sexual debut. Knowledge of country-specific data on age at first intercourse and related risk factors is important to optimize prevention of HPV and other s...

conclusions according to the obtained results, females in the rural areas had lower sexual function than the ones in the urban areas. it is suggested to establish female sexual health units in healthcare centers to give female sexual function consultation adjusted with awareness and culture of females and consider the existing problems. background healthy sexual function can be considered as an...

OBJECTIVE To analyze age and condom use at first sexual intercourse among Brazilian adolescents at two periods: 1998 and 2005. METHODS Representative samples of the Brazilian urban population were interviewed during a household survey for two studies, carried out in 1998 and 2005. Interviewees included 670 sexually active young people (aged 16 to 19) who were selected for the study, 312 in 19...