Tag: sperm
7 Results
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New measure of sperm age may predict pregnancy success
For the study, published in the journal Human Reproduction, the team involved 379 male partners of couples who discontinued the use of contraception to become pregnant.
May 14, 2022 -
The ‘milk’ factor
In today’s newspapers I read that doctors in the US have advised that men who want children should freeze their sperm before they are 25, as one in six men become infertile very quickly. In a previous article, I had discussed the studies that prove animal fats are related to decline in semen quantity and …
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January 27, 2018 -
Sex-linked supergene controls sperm size in birds
The size and swimming speed of sperm are controlled by a single supergene in birds, according to a study that may pave the way for new therapies to treat human infertility. Sperm competition is an important selective force in many organisms but the relationship between sperm shape, its ability to move and successful fertilisation is …
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July 18, 2017 -
Secret behind sperm’s ‘bendy’ tail revealed
A sperm tail utilises interconnected elastic springs to transmit mechanical information to distant parts of the tail, helping it to bend and ultimately swim in a hostile environment towards an egg, a new study has found. Previous studies showed that the sperm tail, or flagellum, was made up of a complex system of filaments, connected …
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June 1, 2017 -
‘Sperm radar’ test to improve fertility diagnosis
Scientists have developed a new technique to examine human sperm without damaging them — helping to improve the diagnosis of fertility problems. The Magnetic Resonance Spectroscopy technique uses powerful magnets and works like radar by firing pulses of energy at the sperm sample inside a purpose built scanner and then listening to the echoed signal …
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May 24, 2017 -
Sperm frozen in space produces healthy mice
In a first, freeze-dried sperm stored for over nine months aboard the International Space Station (ISS) has yielded healthy mice offspring, say scientists who suggest that assisted reproduction may be possible for humans living in space in the future. If humans ever set up space colonies, assisted reproductive technology using preserved sperm samples will be …
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May 23, 2017 -
Sleep matters: Early to bed may be key to healthier sperm
For men wanting to become a father, going to bed before midnight may be key to healthier and fitter sperm, a study has showed. The study showed that those falling asleep between 8 and 10 p.m., had the best sperm motility, meaning the sperm are better swimmers and have a greater chance of fertilising an …
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May 15, 2017