Sperm | featured news

Boys left infertile by childhood cancer treatment may one day be able to produce healthy sperm by using stored stem cells, monkey research suggests.

A couple of handfuls of walnuts a day can make a man’s sperm stronger, faster and prettier, researchers said on Thursday -- and it’s possible the nuts could provide a natural solution for some men with fertility problems.

The long search for a male birth control pill is not over -- but researchers say they have a promising new lead. The researchers were testing a cancer drug in mice when they found it was able to temporarily stop sperm production.

Sperm quality is down everywhere, but Israel is worse off than other developed countries. Theories about why vary from cellphones in pockets to estrogen in milk or water. The founder of the Tel Aviv-based specialty firm raves about his product with the same gusto distillers reserve for their top-notch scotch. He's particularly proud of his "premium" line.

As the number of children born through artificial insemination increases, concern is growing about having many children fathered by the same donors.

Men who eat foods containing a lot of saturated fats think burgers and fries and monounsaturated fats may be producing fewer and less active ...

The massive skull and jaw of a 13-million-year-old sperm whale has been discovered eroding from the windblown sands of a coastal desert of Peru.

Since the beginning of time, people have been slathering themselves in all sorts of bizarre substances in the hopes of becoming more beautiful.

Modern technology has exposed a lot of these concoctions to be worthless (or, in the case of Elizabethan-era women using lead paint to lighten their skin, very harmful) and also given us less disgusting alternatives (like synthetic dyes replacing bat poop in mascara).

Sperm banks and donor agencies say the recession is prompting a surge in calls from people who hope to make money by donating ...