Historically the male sexual response cycle was seen as uniform and used as the standard for women. Recent research has suggested that men's sexual response cycle may vary more than previously thought. We asked 520 sexually active men between the ages of 18-73 to report on their sexual desire and arousal patterns during their last sexual experience. Using a latent class mixture model from retrospective sexual response data, we found five classes of desire and arousal patterns. These patterns were examined for associations with demographics, outcomes during the sexual experience, and outcomes for the global relationship. The experiences of arousal and desire appear to be indistinguishable for men in this sample. The Fluctuation sexual response class (19% of men) and the High sexual response class (40%) were significantly different from most of the other classes in duration of their sexual experiences and overall satisfaction with their sexual experiences. Still, most sexual response patterns were associated with healthy relational and sexual outcomes. Variability in the male sexual response cycle is important to acknowledge and normalize.
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http://dx.doi.org/10.1080/00224499.2019.1705960 | DOI Listing |
J Gen Intern Med
January 2025
Yale School of Medicine, New Haven, CT, USA.
Following the birth of Black Lives Matter, USA medical students advocated for greater commitment to health equity from their schools. In response to such concerns, in 2015, the Yale School of Medicine formed a committee for diversity, inclusion, and social justice and a committee on lesbian, gay, bisexual, transgender, queer, questioning, and intersex affairs. Based on their efforts, our Educational Policy and Curriculum Committee commissioned a student-faculty-led task force to survey the curriculum and make recommendations toward the creation of a health equity curriculum.
View Article and Find Full Text PDFJ Physiol Sci
January 2025
Department of Anatomy and Neurobiology, Graduate School of Medical Sciences, Nippon Medical School, 25-16 Nezu 1 Chome, 113-8602, Tokyo, Japan. Electronic address:
As in many mammalian behaviors, sexual behavior exhibits structure. Each modular components of the structure, that are linked together over time, occur in probabilistic manner. Endocrine milieu, in particular sex hormones, define the probability to synchronize the behavior with the production of gametes.
View Article and Find Full Text PDFJMIR Res Protoc
January 2025
Key Populations Program, Center for Public Health and Human Rights, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States.
Background: In South Africa, there is no centralized HIV surveillance system where key populations (KPs) data, including gay men and other men who have sex with men, female sex workers, transgender persons, people who use drugs, and incarcerated persons, are stored in South Africa despite being on higher risk of HIV acquisition and transmission than the general population. Data on KPs are being collected on a smaller scale by numerous stakeholders and managed in silos. There exists an opportunity to harness a variety of data, such as empirical, contextual, observational, and programmatic data, for evaluating the potential impact of HIV responses among KPs in South Africa.
View Article and Find Full Text PDFSci Adv
January 2025
Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.
A key response to acute stress is the increased brain synthesis of the neurosteroid allopregnanolone (AP). Although the rate-limiting step of this reaction is catalyzed by 5α-reductase (5αR), the role of its two primary isoenzymes, 5αR1 and 5αR2, in stress reactivity remains unclear. Here, we found that acute stress led to increased levels of 5αR2, but not 5αR1, in the medial prefrontal cortex (mPFC) of male, but not female, rats.
View Article and Find Full Text PDFEvolution
January 2025
Department of Biology, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada.
To better understand the sources of biological diversity in nature, we need information on the mechanisms underlying population divergence. Biological systems with patterns of naturally occurring adaptive variation among populations can provide insight into the genetic architecture of diverging traits and the influence of genetic constraints on responses to selection. Using a system of reproductive character displacement in the North American mushroom-feeding fly Drosophila subquinaria, we assessed patterns of genetic (co)variance among a suite of chemical signaling traits and divergence in this pattern among populations.
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