Human sperm race to fertilize an egg.
David M. Phillips/Science Source
February 5, 2013 A study finds that guys who watched a lot of TV had lower sperm counts than more active fellows. The effect held true even when other factors, such as body weight and diet, were taken into account.
When is the right time to check the PSA box?
February 5, 2013 Testing for prostate cancer may not get any less confusing anytime soon. But researchers say the much-maligned PSA screening test is worthwhile if it's used for the right men at the right time.
A rabbi holds up a pillow used during ritual circumcision at a synagogue in Berlin.
October 19, 2012 A German regional court effectively banned circumcision this summer after ruling that the ancient practice amounts to assault. That fueled accusations of religious intolerance in a country still haunted by its Nazi past. Now lawmakers are pushing through a bill to make circumcision legal.
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A mural in an ancient tomb in China shows a troupe of eunuchs. How long did they live?
September 25, 2012 Korean researchers have found that eunuchs who worked for kings in ancient royal courts lived longer, on average, than other males who were in the inner circle. The provocative findings fit with other work that has shown an inverse link between longevity and reproduction: the greater the fertility, the shorter the life span.
August 28, 2012 A national study found less than half of young men had received any sexual or reproductive health services in the previous year. Of those, the most commonly reported service was a testicular exam.
May 28, 2012 A federal task force's recommendations against routine blood tests for prostate cancer raises big questions about how to interpret medical evidence and what role expert panels should play in how doctors practice. But those questions aren't easy to answer.
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May 24, 2012 Johns Hopkins researcher round that nearly three-quarters of primary care doctors they surveyed said their patients expected regular PSA screening to continue. The findings suggest there will be
May 23, 2012 The U.S. Preventive Services Task Force said the harms, such as false alarms and unnecessary surgeries that leave some men impotent and incontinent, outweigh the benefits of routine PSA blood testing for prostate cancer. But it's far from clear that doctors and their patients will heed the advice.
March 15, 2012 Lawmakers in at least six states — all women and all Democrats — have proposed bills or amendments in the last few weeks that aim to regulate a man's access to reproductive health care. The proposals are a response to legislation that would limit women's access to those services.
Eating foods high in saturated fat may increase fertility problems in men, a preliminary study finds.
March 14, 2012 Saturated fat, the stuff in meat and dairy foods, was associated with lower sperm counts, in a study of 99 men who were clients of fertility clinics. The results, though preliminary, suggest there's something men can do to boost the odds their sperm are up to their evolutionary task: eat better.
October 26, 2011 Confused about the fuss over PSA screening for prostate cancer? A commentary in the New England Journal of medicine says there's a middle ground between business-as-usual and throwing PSA tests out altogether.
October 11, 2011 The largest study yet to test whether daily vitamin E supplements could reduce the risk of prostate cancer finds they may have the opposite effect, raising the chances of illness by 17 percent.
October 7, 2011 Cialis, a popular remedy for impotence, has now been approved by the Food and Drug Administration as a treatment for symptoms of benign prostatic hyperplasia. It's the ninth drug okayed for relieving those symptoms but the only one approved for both uses.
Field of dreams: saw palmetto thriving in Florida's Osceola National Forest.
September 28, 2011 A clinical trial that gave saw palmetto every chance to succeed — eventually increasing the daily dose of the stuff to three times the usual amount — found it was no better than a placebo at relieving enlarged prostate symptoms.
September 13, 2011 Scientists found that single men who started out with relatively high testosterone levels were more likely than other men to become fathers. But once a baby arrived, testosterone levels plummeted.
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