Friday, April 24, 2015

Medical Investigations: Factors that weaken the quality of semen

What external factors can affect semen quality and impair the ability to fertilize in men? A study conducted by a team of researchers from the National Institutes of Health and Stanford University in California (USA), has unraveled those causes related to our lifestyle that outside of those already studied as the stress, causing this result. The findings have been published in the journal Fertility and Sterility.

"Male infertility plays an important role, and our goal is to explore the influence of environmental factors and health status in semen quality," says Germaine Buck Louis, who led the study.

Semen quality is based on the number, shape and movement ability of spermatozoa as well as other factors. So experts with the participation of more than 500 couples with an average of 31.8 years of age, white and college. The couples had stopped using contraception and follow them all was held for 12 months.

Male participants, apart from providing a semen sample were subjected to several interviews about their reproductive history, lifestyle, occupation and health. The following results during this period revealed, among other things, that 13% of men whose work requiring great physical effort had a low sperm count, compared to 6% whose work did not require force.

Additionally, those who had high blood pressure, high cholesterol or diabetes also had a lower percentage of sperm compared to those without these characteristics of health. Likewise, those taking drugs, 15% had sperm counts below what is considered normal, 39 million per milliliter.

In all, the research concludes that have a physically demanding job, taking several medications and suffer high blood pressure are some of the factors that can decrease sperm quality and hinder the desired design by the couple.

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