Non prescription viagra
Although many American men have at least one type of abnormality in their sperm, they are just as virile as their grandfathers, researchers at the Keck School of Medicine of the University of Southern California have found. In fact, their sperm densities were no different from samples collected in major studies in the 1950s.

"Everything in our study indicates that the average man's sperm count is not changing," said study co-author Rebecca Sokol, M.D., of the Keck School of Medicine of USC. The results are published in the March issue of the journal Fertility and Sterility.

Sokol and her colleagues looked at semen samples collected from 1,385 men at LAC+USC Medical Center over a three-year period between 1994 and 1997. At the time samples were taken, the men were partners of women who were seeking infertility treatment.

Examining total sperm counts and semen abnormalities, the investigators found that of the half who showed some sperm abnormality, based on World Health Organization criteria, 52% had sperm that were borderline low in mortality; 18% had abnormal sperm concentration, and 14% had abnormally shaped sperm.

Previous studies popularized in the press claimed that male sperm counts were declining because of everything from pollution to sedentary jobs to tight underwear - and even spending too long in the car.

Sokol said this new study was both large and well designed, so that the results can be trusted to be an accurate reflection of sperm quality among American men. She noted that, coincidentally, the pool of men who provided semen samples primarily worked in blue-collar jobs that could have exposed them to significant environmental toxins - so if a drop was found and if pollutants were the cause, it would have been likely to be represented in the findings. Sokol and her colleagues nevertheless found that values for the average sperm count were identical to the count reported in the 1950s.


Source: Science Daily

14 comments
  1. kamagra1uk May 11, 2015 at 12:58 AM  

    The tablets of Kamagra UK are very effective and useful form of anti-impotence medication that performs identically to their brand Viagra for curing erection issues. The basic chemical sildenafil citrate is a very strong compound that is recommended world over for the treatment of ED or impotence in males.
    Kamagra | Buy Kamagra UK | Cheap Kamagra UK

  2. kamagra1uk May 11, 2015 at 1:01 AM  

    Sildamax is a more cost effective way to treat the problem, but provides the same active ingredients, and longer lasting results; making it one of the more popular choices for men to go with.
    Sildamax | Buy sildamax | Cheap Sildamax UK

  3. kamagra1uk May 11, 2015 at 1:03 AM  

    We provide the lowest price sildamax medicine that you can hardly find any other place. Moreover refund policy is also applied if the customers are not satisfied with our products.
    Sildamax | Buy Sildamax Uk |Cheap Sildamax UK

  4. kamagra1uk May 11, 2015 at 1:05 AM  

    Sildamax usually become effective within an hour after consumption and can last between two and six hours. Sildamax is manufactured in state of the art factories under clinically clean conditions.
    Sildamax | Buy 100 Sildamax Tablets - Sildamax Now

  5. kamagra1uk May 11, 2015 at 1:07 AM  

    Kamagra Tablets provide a solution to all male ED disorders so that they are able to enjoy the finer things in life once again.
    Kamagra Tablets| Buy Kamagra tablets| Kamagra tablets UK

  6. kamagra1uk May 11, 2015 at 1:09 AM  

    Kamagra Jelly Introducing an enhanced version of the erectile dysfunction medicine, the jelly provides the slick, yet comfortable lubricant to make love making clean and healthy.
    Kamagra Jelly - enhanced version of the ED medicine

  7. kamagra1uk May 11, 2015 at 1:18 AM  

    Kamagra tablets are the best treatment of male erectile dysfunction and impotency problems. Every Kamagra tablet consists of 100mg active sildenafil citrate that dilates the blood vessels.
    kamagra tablets| Buy Kamagra Tablets| Kamagra Tablets Uk

  8. kamagra1uk May 11, 2015 at 1:22 AM  

    Super Kamagra is the proven treatment of male erectile dysfunction and premature ejaculation. It is the sole cure of male impotency. It comprises of active ingredient Sildenafil citrate.
    Super Kamagra | Buy Super Kamagra | Super kamagra Uk

  9. kamagra1uk May 11, 2015 at 1:25 AM  

    Kamagra Jelly acts on the erectile tissue of the male genital part to increase the blood supply into it that is required to cause an erection.
    Kamagra Jelly| Buy Kamagra Jelly| Kamagra Jelly Uk

  10. kamagra1uk May 11, 2015 at 1:28 AM  

    The Kamagra pills should not be taken empty stomach and one should consult doctor before having it. It’s cheap and promising cure of impotency.
    Kamagra Uk | Buy Kamagra | Cheap kamagra

  11. kamagra1uk May 11, 2015 at 1:48 AM  

    The product is for both the gender. Men and women both can have the tasty oral jelly based pills. These are people who hate to sallow pills. For such patients Kamagra oral jelly is perfect.
    Kamagra Jelly Uk | Buy Kamagra Jelly | Cheap Kamagra Jelly

  12. kamagra1uk May 11, 2015 at 1:49 AM  

    Super Kamagra contains two active ingredients, 100mg of Sildenafil Citrate to combat male impotency and 60mg of Dapoxetine to treat premature ejaculation.
    Super Kamagra Uk | Buy Super Kamagra | Cheap Super Kamagra

  13. Abigail Gonzalez April 3, 2017 at 7:09 AM  

    With thanks! This is definitely an awesome web-site mymedicalfinds.com

  14. Robert Wilson July 20, 2017 at 7:26 AM  

    Male Enhancement Pills are the privilege and exact male improvement item for the individuals who are exceptionally concern respects to their development of private organ. It works adequately , gives an incredible stamina so one can appreciate the sexual coexistence with great joy.
    Progentra Ingredients