semen
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Insecticides Help Drive Down Men’s Sperm Counts, New Review Suggests
New research this week suggests that humanity’s war against insectkind has had some unintended consequences: declining sperm counts. The study, a review of the existing data, found a clear association between increased exposure to insecticides and lower sperm concentrations in adult men. The authors say that the evidence is strong enough to warrant new regulations…
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Scientists Produce Healthy Mice From Sperm Kept in Space for Nearly 6 Years
The longest biological experiment ever performed on the International Space Station has exposed the surprising durability of freeze-dried mouse sperm when exposed to space radiation.
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How Sperm ‘Swim’ May Be Nothing But an Optical Illusion
An international group of scientists say their latest research will upturn one of the earliest scientific discoveries ever made about human sperm. In a new paper out Friday, they seem to show that sperm cells don’t propel themselves by simply flicking their tails back and forth, as is commonly believed. Rather, sperm perform a complex…
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The CDC Will Pay People For Zika-Infected Semen
The US Centres for Disease Control and Prevention is collecting semen from hundreds of Zika-infected men to figure out how long the sexually transmitted virus lingers in the body.