Cardiology

New study shows sex differences in the physiology of the heart

Thanks to new technology, researchers at the Clinical Physiology group, Department of Molecular Medicine and Surgery, Karolinska Institutet, have demonstrated that females have higher myocardial perfusion, blood volume and ...

Diseases, Conditions, Syndromes

Why men may fare worse than women against SARS-CoV-2

Data from COVID-19 cases around the world suggest that the new coronavirus hits men harder than women. Differences in men and women's immune responses to the virus may help explain why.

Diseases, Conditions, Syndromes

Why COVID-19 poses greater risks for men than women

While it's not exactly clear why, the finding itself is certain: Men are suffering worse fates than women when it comes to COVID-19, regardless of geography or age. A variety of data from outbreaks across the world has established ...

Health

More young Americans are going without sex

Sex, and lots of it, has long been the primary preoccupation of young adults, but more of them are now going months and years without any intimate encounters.

Psychology & Psychiatry

Late-life depression may be linked to gender expression

Over time, depression has decreased among older women. But it is still nearly twice as frequent as among older men. This difference between men and women appears to be connected with both biological sex and gender expression, ...

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Sex

In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into male and female types (or sexes). Sexual reproduction involves combining specialized cells (gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.

An organism's sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.

This text uses material from Wikipedia, licensed under CC BY-SA