sperm

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Birth Control Shot for Guys May Be Here by 2017

Long-lasting Vasalgel contraceptive would require just a single injection

(Newser) - There may be another birth control option headed our way, and the guys will get to take the lead on this one. The Parsemus Foundation has tested an injectable, non-hormonal polymer contraceptive on male baboons that appears to successfully prevent pregnancy in females, Medical Daily reports. The procedure, which requires...

Macho Men Have So-So Sperm

 Macho Men  
 Have So-So Sperm 
study says
Sep 9, 2014 4:19 PM CDT

Macho Men Have So-So Sperm

Tradeoff between looks and virility might be at play, says study

(Newser) - Macho guys may attract more women, but the quality of their sperm might not be of he-man standards, a new study suggests. Oddly, the sperm of good-looking guys—but not necessarily macho ones with square jaws and distinct cheekbones—is just fine, reports Medical Daily . The link was found when...

'Robot Sperm' Slow but Accurate

Tiny robots could be used for IVF, researchers say

(Newser) - Technophobes may be alarmed to learn that new sperm-like robots could soon be performing many activities—including fertilizing human eggs. Researchers say the tiny bots, dubbed "MagnetoSperm," were inspired by the shape and movement of sperm cells and can "swim" to their target with incredible accuracy, LiveScience...

Scientists Find World's Oldest Sperm

Shrimp-like creatures were preserved nearly in mid-act 17M years ago

(Newser) - About 17 million years ago, a shrimp-like creature had sex in a cave in Australia, but instead of an afterglow, she got hit almost immediately with what one scientist thinks was a "torrential rain of bat droppings," reports Australia's ABC News . Her misfortune then is scientists' delight...

Discovered: Sperm's Docking Station

Protein allows sperm to link with egg

(Newser) - Scientists are announcing a breakthrough in the study of fertility. They've learned more about how a sperm cell links to an egg cell, offering hope for future treatments—for both fertility and contraception, Nature reports. Scientists already knew of a protein on the surface of a sperm cell that...

Palestinians Sneak Sperm Out of Israeli Prisons

Fertility doctor cooks up smuggling scheme

(Newser) - The wives of Palestinians held in Israeli prisons are getting pregnant in an odd way—by smuggling out the prisoners' sperm, NBC News reports. But the families won't say how they get the sperm past a glass separation, body search, and an airport-style scanner. "If I told you...

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...

French Sperm Quality Takes Huge Hit

 French Sperm Quality 
 Takes Huge Hit 
new study
Dec 5, 2012 7:20 AM CST

French Sperm Quality Takes Huge Hit

Concentration of sperm in semen falls 32.3% over 16 years: study

(Newser) - The good news: The male population of France is still fertile. The bad: Its sperm isn't nearly what it once was. A 16-year study of 26,600 of the country's men found their sperm count has sharply fallen, with the number of millions of spermatozoa per milliliter down...

Smoking, Drinking Doesn't Hurt Your Sperm

Study suggests a lousy lifestyle won't hurt fertility chances

(Newser) - A study by British researchers seems to upend some standard medical advice for men: They found that smoking, heavy drinking, doing drugs, and being overweight doesn't affect sperm, reports the BBC . Researchers compared samples in about 2,000 men and found "little evidence" that lifestyle has any impact...

Demand for US Sperm on the Rise

Jumps as much as 40% in past 5 years, according to The Daily

(Newser) - From Chile to Sweden, people around the world want more and more of our ... sperm? That is indeed the case, according to the Daily , which reports that demand for American men's genetic material has climbed as much as 40% over the past five years. "In the last three...

Gene Discovery May Yield Men's Birth Control Pill

Fertility gene plays a big role in sperm production

(Newser) - Scientists could be a big step closer to inventing a birth control pill for men. New research at the University of Edinburgh has pinpointed a gene called Katnal 1 that manages the final stages of sperm development, reports the Daily Telegraph . In theory, the work could lead to a new...

High-Fat Diet Lowers Sperm Count
High-Fat Diet
Lowers Sperm Count
study says
Mar 14, 2012 5:01 PM CDT

High-Fat Diet Lowers Sperm Count

Saturated fats take the biggest toll in study

(Newser) - It's more bad news for fat. A new study shows men who eat large amounts of fatty foods, especially saturated fats common in meat and dairy products, had lower sperm production and concentration. A diet consisting of 37% or more of fat calories or just 13% or more of...

The Male &#39;Pill&#39;: Ready for Testing
The Male 'Pill': Ready
for Testing
researchers say
Feb 27, 2012 6:48 PM CST

The Male 'Pill': Ready for Testing

Contraceptive pill for men may be just a decade away

(Newser) - Will men take it? Will women believe men are taking it? However this unfolds, the male contraceptive pill may be only a decade away, the St. Paul Pioneer Press reports. Researchers at the University of Kansas are so confident about their male contraceptive pill that they're ready to seek...

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,...

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...

Mouse Sperm Grown in Lab
 Mouse Sperm Grown in Lab 
Jan 3, 2012 1:22 PM CST

Mouse Sperm Grown in Lab

Could someday mean infertile men can father babies

(Newser) - In what could be a breakthrough for men battling with infertility, scientists were recently able to grow mouse sperm in a lab. Scientists hope to someday use the same process to grow human sperm, which could mean that infertile men would be able to father children of their own, the...

Laptop WiFi May Ruin Sperm


 Laptop WiFi 
 May Ruin 
 Sperm 
in case you missed it
Dec 3, 2011 6:30 AM CST

Laptop WiFi May Ruin Sperm

But some experts are skeptical

(Newser) - Guys, you may want to keep that laptop at a safe distance. A new study finds that laptops using WiFi may damage sperm, Reuters reports. Scientists put drops of healthy men’s semen under a laptop downloading data; after four hours, a quarter of the sperm had stopped swimming. Only...

Scientists Turn Stem Cells Into Working Sperm

Researchers see hope for infertile men

(Newser) - Researchers have managed to produce sperm cells from embryonic stem cells—and for the first time, the sperm worked, resulting in healthy baby mice. Researchers in Japan mixed the embryonic stem cells with certain proteins and hormones. They converted the resulting cells into germ cells, which they implanted in the...

Rapist Nabbed by Sperm-Sniffing Dog

Rapports Opus is the only dog of his abilities in southern Sweden

(Newser) - Forget drug-sniffing dogs: Sweden has its very own sperm-sniffing dog named Rapports Opus, and he recently helped police catch an alleged rapist. Rapports Opus trained for a year to become the only sperm-sniffing dog in southern Sweden, and he was brought to a park where a man had been accused...

Scientists Grow Sperm From Mice in Laboratory for First Time
 Sperm Grown 
 in Lab for First Time 
IN CASE YOU MISSED IT
Mar 27, 2011 3:37 PM CDT

Sperm Grown in Lab for First Time

If it works in humans, it could help with men's infertility

(Newser) - Japanese researchers have grown sperm in the laboratory for the first time, reports Nature . If the breakthrough with mice transfers to humans, it could open up IVF treatments for infertile men, notes the Guardian . Scientists created the sperm from the testicular tissue of mice and successfully produced a dozen baby...

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