Diseases, Conditions, Syndromes

What you need to know about monkeypox

The World Health Organization said June 25 that monkeypox wasn't yet a public health emergency of international concern. More than 4,500 cases have been reported worldwide, with more than 300 in the U.S.

Medical research

Common prebiotic fiber mitigates harm of high-salt diet in rats

New research in rats finds a diet high in the prebiotic fiber inulin offered a protective effect against the damage of a high-salt diet. The research will be presented this week at the American Physiological Society (APS) ...

Diseases, Conditions, Syndromes

WHO panel: Monkeypox not a global emergency 'at this stage'

The World Health Organization said the escalating monkeypox outbreak in more than 50 countries should be closely monitored but does not warrant being declared a global health emergency.

Diseases, Conditions, Syndromes

Monkeypox outbreak growing across Britain

British officials said the monkeypox outbreak in the U.K. is growing across the country, mainly among men who are gay or bisexual, or other men who have sex with men. They urged those with new or multiple sex partners to ...

Immunology

Females found to itch less than males

Among the many reasons men may have for envying women, at least when it comes to skin inflammation, is that women have a significantly lower incidence of severe psoriasis. However, the underlying reason for the sex differences ...

Sleep apnea

Hormones linked with sleep apnea, snoring in postmenopausal women

Middle-aged women with low levels of estrogen and progesterone are more likely to snore and to report symptoms of obstructive sleep apnea, according to a new study published this week in PLoS ONE by Kai Triebner of University ...

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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