Sperm warfare poison


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Humans are constantly exposed to a range of chemicals and toxins in their environment which can affect their health, including their reproductive health. For men, a range of environmental exposures are associated with reduced sperm concentration and quality. Men whose sperm is sub-optimal in either quantity or quality are less likely to conceive, and will, on average, take longer to do so, should they manage to successfully conceive.

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Ellison. Age: 31.
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THE blunderbuss was not a subtle weapon. Beloved of buccaneers and highwaymen, it spattered lead shot in all directions from its flared muzzle — with deadly effect. It was great for clearing the decks as you boarded an enemy vessel, but you ran the risk of killing your comrades.

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Willow. Age: 32.
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Effect of Environmental Factors on Sperm Health

To investigate the acute and chronic effects in young men of exposure to chemical warfare containing mustards, the time course of changes in serum concentrations of total and free testosterone, dehydroepiandrosterone DSfollicle-stimulating hormone FSHluteinizing hormone LH and prolactin was evaluated in 16 men in the first three months and testicular function in 42 men one to three years after injury. Serum total and free testosterone and DS were markedly decreased in the first five weeks after exposure. The response to GnRH was subnormal in four of five subjects. LH increased by the third and FSH and prolactin by the fifth week.

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Remember that '60s refrain, "Make love, not war"? For sperm, some scientists say, love and war are one and the same. According to the so-called kamikaze sperm hypothesis, sperm from different men hanging out in the same vagina may sabotage each other in the run for the egg. New findings, however, cast doubt on this idea.