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Necrospermia—absence of living sperm in the ejaculate Terato spermia —fraction of normally formed sperm below lower reference limit In medicine , hyperspermia is a condition in which a male has an abnormally large amount of semen or ejaculate volume [ 1 ] and is generally defined when the ejaculate is above 6 mL. [ 2 ]
Research conducted by Indiana University's Center for Sexual Health showed that using lube makes it 50% easier for both men and women to orgasm. And it makes sense, too: according to Elist, lube ...
The male infertility crisis is an increase in male infertility since the mid-1970s. [1] The issue attracted media attention after a 2017 meta-analysis found that sperm counts in Western countries had declined by 52.4 percent between 1973 and 2011.
Males from India had a 30.3% decline in sperm count, 22.9% decline in sperm motility, and a 51% decrease in morphology over a span of a decade. Doctors in India disclosed that the sperm count of a fertile Indian male had decreased by a third over a span of three decades. [82]
The result of this is an overall increase in sperm and testosterone production (a.k.a., increased testosterone levels). But seeing the full results can take some time — weeks or months.
Collecting the sperm at home gives a higher sperm concentration, sperm count and motility, particularly if the sperm is collected via sexual intercourse. [35] If the semen sample is to be collected by masturbation, a specimen from the early stages of the ejaculate should be into a clean, unused, sealed collection cup.
When an egg and sperm fuse at fertilization, the two sets of chromosomes come together to form a unique diploid individual with 46 chromosomes. [2] The sex chromosome in a human egg is always an X chromosome since a female only has X sex chromosomes. In sperm, about half the sperm have an X chromosome and half have a Y chromosome. [2]
The research is mixed on whether cycling affects male fertility, including sperm—but doctors offer some tips on protecting your swimmers, if you have concerns.
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