What determines whether we become overweight? Aside from lifestyle, predisposition plays a role, but genes cannot fully explain the inherited propensity to accumulate excess weight.
Jul 19, 2023
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More than three months after suffering from mild COVID infection, men have lower sperm concentrations and fewer sperm that are able to swim, according to new findings presented at the 39th annual meeting of the European Society ...
Jun 26, 2023
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Scientists have developed new technology to help couples undergoing in-vitro fertilization (IVF) due to male fertility problems to increase their chances of success in having a baby.
Apr 6, 2023
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It's a controversial notion, but couples undergoing fertility treatments may soon be able to select the sex of their baby—with an 80% chance of success, doctors say.
Mar 22, 2023
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Despite birth control existing for decades, almost none of the options specifically target sperm cells. Researchers are now developing approaches that target testosterone or otherwise interrupt the sperm's ability to fertilize ...
Jan 30, 2023
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A new way to prevent pregnancy without side effects may be possible with a prophylactic gel made from all natural, non-hormonal ingredients, scientists in Sweden report. The gel reinforces the cervical mucus barrier, offering ...
Nov 30, 2022
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Not all Australians with cancer are getting the fertility care they need.
Oct 31, 2022
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A new approach for assisting reproduction in mice when sperm production is faulty has been demonstrated by researchers at RIKEN. It could eventually help human couples who are struggling to conceive by traditional in vitro ...
Sep 12, 2022
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Patients having intrauterine insemination for fertility treatment can be reassured that the use of cryopreserved sperm instead of fresh is not associated with inferior outcomes. The largest study of its kind, whose results ...
Jul 4, 2022
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Men all over the world are suffering from deteriorating semen quality—often referred to as an outright fertility crisis.
May 23, 2022
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A sperm, from the ancient Greek word σπέρμα (seed) and ζῷον (living being) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote is a single cell, with a complete set of chromosomes, that normally develops into an embryo.
Sperm cells contribute half of the genetic information to the diploid offspring. In mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring (the ovum always provides an X chromosome). Sperm cells were first observed by Anton van Leeuwenhoek in 1677.
This text uses material from Wikipedia, licensed under CC BY-SA
