Sexual differences are often dramatic and widespread across taxa. Their extravagance and ubiquity can be puzzling because the common underlying genome of males and females is expected to impede rather than foster phenotypic divergence. Widespread dimorphism, despite a shared genome, may be more readily explained by considering the multivariate, rather than univariate, framework governing the ev...

introduction: some studies demonstrate that depression, stress, low self-esteem and sexual dissatisfaction may be psychological outcomes of infertility. depression and sexual satisfaction may play a significant role in the life of infertile couples, their infertility treatment follow-ups and their hopefulness for the future. this study was done to determine and compare rates of depression and s...

results brdu ihc showed a significant decrease in neurogenesis following tld in both sexes showing more severity in male rats than in female rats. results of nissl staining and mwm also confirmed the brdu findings. regarding sexual dimorphism, our data showed no significant sex differences in the dg area of the hippocampus. conclusions sex-dependent reduction in neurogenesis following tld could...

Although it has been hypothesized that culture and religion play an important role in sexuality, the relative roles of acculturation and religiosity on ethnic differences in sexual attitudes have not been often empirically explored. The present study assessed differences in sexual attitudes in Euro-American, Asian, and Hispanic American populations using measures of acculturation to analyze the...

BACKGROUND Sexual minorities have documented elevated risk factors that can lead to inflammation and poor immune functioning. PURPOSE This study aims to investigate disparities in C-reactive protein (CRP) and Epstein-Barr virus (EBV) by gender and sexual orientation. METHODS We used the National Longitudinal Study of Adolescent Health to examine disparities in CRP (N = 11,462) and EBV (N = ...

We examined between-sex differences and within-sex differences in jealousy in response to a romantic partner s sexual and emotional infidelity. In addition to replicating established sex differences in jealousy, we investigated a potential trigger for within-sex differences in jealousy. We hypothesized that men will be more distressed by sexual infidelity and women will be more distressed by em...

BACKGROUND Lesbian, gay, and bisexual populations are not part of cancer surveillance, resulting in scarce information about the cancer survivorship of these populations. To address this information gap, the authors examined the prevalence of cancer survivorship by sexual orientation and cancer survivors' self-reported health by sexual orientation. METHODS The authors explored these issues by...

Environmental differences can cause reproductive isolation to evolve. Distinct habitats can be particularly important for the evolution of genetically based sexual isolation, which occurs when divergent preferences and mating traits reduce mating between species. Yet, we know little about environmental effects on the potentially plastic expression, and thus the current maintenance, of sexual is...

BACKGROUND This study explored differences in sexual activity, function, and concerns between cancer survivors and cancer-free controls in a population-based study. METHODS The data were from 2982 men and 3708 women who were 50 years old or older and were participating in the English Longitudinal Study of Ageing. Sexual well-being was assessed with the Sexual Relationships and Activities Ques...

Sexual obsessions are common symptoms of obsessive–compulsive disorder (OCD). The literal content of these obsessions superŽ cially resembles other types of iterative sexual ideation, as seen in the paraphilias, PTSD, and normal sexual fantasy. However, their form, function, and effect on behavior vary greatly. A failure to distinguish these different categories of sexual thought can lead to co...