Hoping to conceive? Experts offer tips to better female fertility
Women hoping to get pregnant sometimes wonder if there's anything they can do to make it easier to conceive.
5 hours ago
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Women hoping to get pregnant sometimes wonder if there's anything they can do to make it easier to conceive.
5 hours ago
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A recent study at the Hebrew University aimed to improve attitudes toward food in women with restrained eating habits who monitor their diet by training them to respond more flexibly to food cues. The results indicated that ...
Apr 17, 2024
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In a new study, a Johns Hopkins Medicine-led research team reports that social stress during adolescence in female mice later results in prolonged elevation of the hormone cortisol after they give birth. The researchers say ...
Apr 16, 2024
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The majority of female athletes (58%) support categorization by biological sex, rather than gender identity, but views differ according to sporting context, a new study shows.
Apr 16, 2024
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A new article in JBMR Plus indicates that patient survival rates after hip or other bone fractures can be very poor. While patients and their families may dismiss a fracture as a minor injury, survival rates can be lower ...
Apr 9, 2024
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Over the past decades, numerous studies have investigated the neural and cognitive processes underpinning intergroup conflict, as this could help to explain what fuels belligerent behavior, political clashes, and wars. While ...
Earlier menopause combined with higher risk of cardiovascular disease is linked to an increased risk of thinking and memory problems later, according to a new study published in the online issue of Neurology. In this study, ...
Apr 3, 2024
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High levels of glucose and triglycerides are associated with future risk for depression, anxiety, and stress-related disorders, according to a study published online April 2 in JAMA Network Open.
Apr 3, 2024
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Exercising during pregnancy doesn't just benefit moms—it may also give their babies a head start on their heart health after birth, according to a study by researchers at The Ohio State University Wexner Medical Center.
Mar 27, 2024
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A free smartphone app, Drink Less, can help people who would benefit most from reducing their alcohol consumption to do so successfully, according to a large randomized controlled trial led by UCL researchers and involving ...
Mar 25, 2024
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Female (♀) is the sex of an organism, or a part of an organism, which produces mobile ova (egg cells). The ova are defined as the larger gametes in a heterogamous reproduction system, while the smaller, usually motile gamete, the spermatozoon, is produced by the male. A female individual cannot reproduce sexually without access to the gametes of a male (an exception is parthenogenesis). Some organisms can reproduce both sexually and asexually.
There is no single genetic mechanism behind sex differences in different species and the existence of two sexes seems to have evolved multiple times independently in different evolutionary lineages. Other than the defining difference in the type of gamete produced, differences between males and females in one lineage cannot always be predicted by differences in another. The concept is not limited to animals; egg cells are produced by chytrids, diatoms, water moulds and land plants, among others. In land plants, female and male designate not only the egg- and sperm-producing organisms and structures, but also the structures of the sporophytes that give rise to male and female plants.
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