This is your sperm on drugs

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There’s been evidence for years that heavy marijuana use damages men’s fertility, and researchers may have finally figured out how. It appears that THC, the active ingredient in marijuana, may have pretty much the same effect on sperm that it has on humans.

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NEW SCIENTIST reports that when sperm in test tubes were treated with high levels of THC, rather than swimming briskly like gametes with places to go and people to see, they meandered lazily, not getting very far. If they did happen to reach an egg, they seemed unable to bind to it and penetrate. “It really stops them cold,” said one researcher.

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DEMOCRACY DOES NOT EXIST...

without free and fair elections, a vigorous free press, and engaged citizens to reclaim power from those who abuse it.

In this election year unlike any other—against a backdrop of a pandemic, an economic crisis, racial reckoning, and so much daily bluster—Mother Jones' journalism is driven by one simple question: Will America move closer to, or further from, justice and equity in the years to come?

If you're able to, please join us in this mission with a donation today. Our reporting right now is focused on voting rights and election security, corruption, disinformation, racial and gender equity, and the climate crisis. We can’t do it without the support of readers like you, and we need to give it everything we've got between now and November. Thank you.

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