This study analyzed how the culture of origin, educational level, sexual orientation, and experience of male sex workers may mediate their commercial sexual behaviors. A total of 100 Spanish agency male sex workers were interviewed. Most of them were young men, Latin American, homosexual, and had middle-level education. Our results showed that cultural differences and sexual orientation could i...

Modern sexual selection theory indicates that reproductive costs rather than the operational sex ratio predict the intensity of sexual selection. We investigated sexual selection in the polygynandrous common lizard Lacerta vivipara. This species shows male aggression, causing high mating costs for females when adult sex ratios (ASR) are male-biased. We manipulated ASR in 12 experimental populat...

Congenital adrenal hyperplasia (CAH) is a rare autosomal recessive disorder caused by mutations in the cytochrome P450 family 17 subfamily A member 1 (CYP17A1) gene located on chromosome 10q24.3, which leads to a deficiency in 17α‑hydroxylase/17,20‑lyase. The disorder is characterized by low blood levels of estrogens, androgens and cortisol, which leads to a compensatory increase in adrenocorti...

according to iran’s folk medicine, camphor, a crystalline ketone obtained from essential oils of cinnamomum camphora, has both sexual behavior attenuating and enhancing properties. this study examined the effects of camphor on sexual behavior in male rats. twenty four sexually mature male sprague-dawley rats were randomly divided into 4 groups receiving daily i.p. injections of olive oil as veh...

antisocial personality has some clear symptoms as impulsivity, unstable emotions, aggression, drinking, use of drugs, early initiation of sexual behavior make some difficulties and problems in their relations with family members and those who have interaction with them and at least in society. according to the mentioned symptoms of this personality disorder in this research project, it has been...

Although research has documented the prevalence and health correlates of sexual aggression among women who have experienced severe partner violence (PV), no research has documented the parallel issues among male victims of severe PV. Research also suggests that children of female victims of both physical and sexual PV have worse mental health than children of female victims of physical PV only,...

Sexual obsessions are a common symptom of obsessive-compulsive disorder (OCD) that may be particularly troubling to patients. However, little research has examined concerns surrounding sexual orientation, which includes obsessive doubt about one's sexual orientation, fears of becoming homosexual, or fears that others might think one is homosexual. The present study reports rates and related cha...

background: female sexual dysfunction (fsd) defines as any disorder in the process of sexual contact including 6 main domains, desire, arousal, lubrication,  orgasm,  orgasm  satisfaction  and  pain. this study was conducted to evaluate prevalence of sexual dysfunction disorder in women with migraine headache and also find the associated factors related to migraine characteristics. methods: a t...

This study examined the sexual knowledge, contraceptive knowledge and sexual attitudes among male high school students. In addition, the factors that affect sexual attitudes of male high school students were investigated. As a cross-sectional study, a questionnaire survey was conducted in G high school and an investigation carried out by a structured survey of 79 male high school students. The ...