(Reuters Health) - Spending hours on a cell phone each day may affect the quality of a man's sperm, preliminary research suggests. In a study of 361 men seen at their infertility clinic, researchers at the Cleveland Clinic found an association between the patients' cell phone use and their sperm quality. On average, the more hours the men spent on their cell phones each day, the lower their sperm count and the greater their percentage of abnormal sperm. The findings, published in the journal Fertility and Sterility, add to questions about the potential health effects of cell phones and other wireless devices. Some studies, for example, have linked long-term cell phone use to a higher risk of brain tumors, though many other studies have found no such connection.  More...

(msnbc) With condoms and vasectomies, men take responsibility for a third of contraception in the United States. But health officials would like to see that figure grow. "Just imagine if they had another non-permanent option," said Elaine Lissner, director of the nonprofit Male Contraception Information Project. Several promising possibilities — from a male pill to putting a cork in it — are on the horizon, based on presentations today at the second "Future of Male Contraception" conference, held in Seattle and sponsored by the National Institutes of Health, World Health Organization and others. They include: Sperm blocker, Nonhormonal pill,Testosterone-like pill.  More...

(MNT) After leveling off for more than two years, and declining in 2006, new syphilis cases spiked in New York City during the first three months of 2007. The Health Department has announced that doctors reported 260 cases of primary and secondary syphilis during January, February and March, compared with 128 cases during the same period last year. Interviews with patients suggest that the increase is concentrated among men who have sex with men, especially in the Chelsea area of Manhattan. As in past years, half of those newly diagnosed with syphilis also report being infected with HIV. While men account for the vast majority (96%) of new syphilis cases, the infection may also be increasing among women.  More...

There's more bad news for those pudgy couch potatoes, junk food junkies and TV devotees -- and this time it really hits them where it hurts. A study published on Thursday found that about 18 percent of U. S. men age 20 and up suffer from erectile dysfunction -- and the condition is strongly linked to a sedentary lifestyle of little physical exercise, poor diet and lots of television. .  More...

Are you entering "male menopause"? You've heard the phrase, but is there really such a thing? Like women, men experience a drop in the levels of sex hormones as they age. With men, it's much more gradual. Levels of a man's main sex hormone, testosterone, begin to drop as early as the age of 30. Instead of plunging over a few years, the testosterone levels drop very slightly (about 1 percent) each year—for the rest of his life. This change is so gradual that many men may not notice any effects until several decades have gone by.  More...