sperm count

10 Stories

How Tightie Whities Kill Sperm Counts

Laptops, cycling, saunas can also affect sperm for the same reason

(Newser) - Worried about how modern life affects human sperm, both in quantity and quality? You're not alone: Ideas have been circulating that things like underwear, laptops, cycling, and weight kill off or weaken sperm. So Five Thirty-Eight starts off by tackling the tight-underwear issue: A 2012 study looked at five... More »

To Boost Sperm Count, Get Off the Couch

Exercise increases sperm count: new study

(Newser) - Want a higher sperm count? Get off the couch and start working out. A new Harvard University study found that college-aged men who often exercise have as much as 73% more sperm than their lazier peers, Bloomberg reports. Specifically, those who worked out more than 14 hours a week had... More »

New Home Test Checks Sperm Count

It's the first kit to win FDA approval

(Newser) - If you've ever questioned your sperm count but weren't thrilled with the idea of dropping by a clinic, worry no longer: For the first time, you can get an FDA-approved home test. The $30 to $40 SpermCheck Fertility Home Sperm Test, available at CVS.com and Walgreens.com,... More »

Contraceptive Sperm Zap in the Works

Sound waves in sensitive area cut sperm production

(Newser) - Researchers say they have found what could be a cheap, reliable, and long-lasting form of male birth control, although it involves zapping the testicles with ultrasound. A study on rats found that sound waves slowed sperm production to levels that would cause infertility in humans, making ultrasound a "promising... More »

Space Travel May Make It Harder to Have Kids

Sperm, egg counts fall in lab animals

(Newser) - If you’re intent on having kids, you might want to cancel that vacation to Mars you’ve got penciled in. Research from a University of Kansas biologist suggests that long-term space travel might leave people “reproductively compromised,” the Kansas City Star reports. In tests on space-traveling and... More »

Cycling May Take Toll on Sperm Quality

(Newser) - Men who train vigorously on bicycles have low sperm quality verging on infertility, LiveScience reports. A recent study of Spanish triathletes found that those who rode more than 180 miles a week saw the percentage of healthy sperm drop from a group average of 10% to 4%. “We found... More »

More Sex Makes Stronger Sperm, Cuts Infertility

Men's sperm quality improves with daily ejaculation, study finds

(Newser) - Having sex every day improves sperm quality and can improve a couple's chances of conception, an Australian fertility specialist finds. Eight in 10 men with fertility problems showed less damaged DNA and more mobility in their sperm after 7 days, the BBC reports. The study recommended men "keep the... More »

Soy-Based Foods Might Be Reducing Sperm Count

Western men consuming more of cheap protein; effect worst on those with low count

(Newser) - Soy-based foods could be the root of lower sperm counts in men, a new study finds. Men who consumed more than two portions of soy-based foods a week had, on average, 41 million fewer sperm per milliliter of semen than men who avoided such products. The cheap source of protein... More »

Men Less Fertile After 40: Study

Biological clock ticking as men age

(Newser) - Men apparently have a biological fertility clock that ticks just as inexorably as that of women, reports Agence France Presse. New research reveals that a man's ability to impregnate a partner drops significantly once he reaches 40, regardless of his sperm count. It's the first clinical proof that a man's... More »

Are You Hanging Up on Fertility?

Study finds link between cellphones and infertility

(Newser) - Men may want to be sure their unlimited minutes include calls to the urologist, USA Today reports, because a new study shows a possible link between cellphone use and male infertility. Researchers split 361 men under 40 into groups divided by amount of daily cell use and found the 4-plus-hours... More »

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