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Sperm whale

Before infertility testing, your doctor or clinic works to understand your sexual habits and may make recommendations to improve your chances of getting pregnant. In some infertile couples, no specific cause is found unexplained infertility. Infertility evaluation can be expensive, and sometimes involves uncomfortable procedures.



























For men, deciding between boxers and briefs may be about more than just comfort men's underwear choices may affect their sperm health, a new study suggests.
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Intrauterine insemination IUI a type of artificial insemination is a procedure for treating infertility. Sperm that have been washed and concentrated are placed directly in your uterus around the time your ovary releases one or more eggs to be fertilized. The hoped-for outcome of intrauterine insemination is for the sperm to swim into the fallopian tube and fertilize a waiting egg, resulting in a normal pregnancy.

Are Tighty-Whities Bad for a Man's Sperm Count?

Reactions to research published in Human Reproduction that states men who had ever smoked marijuana had high sperm concentration and count than men who had never smoked marijuana. In subjects, each taking the same moderate dose of marijuana daily over only several weeks, their sperm quality plummeted. Sperm motility decreased, acrosome reactions failed to occur and worst of all, sperm counts dropped and the nurse Sertoli cells that help to make sperm disappeared irreversibly. Despite its large numbers and authorship from a highly esteemed university, it has several major design flaws: we do not know the baseline of sperm counts before marijuana smoking; making the reported increase less reliable.

It is the only living member of the genus Physeter and one of three extant species in the sperm whale family , along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia. The sperm whale is a pelagic mammal with a worldwide range, and will migrate seasonally for feeding and breeding. The females cooperate to protect and nurse their young. Females give birth every four to 20 years, and care for the calves for more than a decade. A mature sperm whale has few natural predators, although calves and weakened adults are sometimes killed by pods of killer whales orcas. Sperm whales can live for more than 60 years. Spermaceti sperm oil , from which the whale derives its name, was a prime target of the whaling industry, and was sought after for use in oil lamps, lubricants, and candles.

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