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99% Effective: First Hormone-Free Male Birth Control Pill Enters Human Trials (scitechdaily.com)

submitted 1 week ago by [email protected] to c/[email protected]

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[–] [email protected] 5 points 1 week ago (33 children)

99% effective is nowhere near 100%, perhaps counterintuitively. Sex twice a week for a year and you're probably in deep shit.

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[–] [email protected] 13 points 1 week ago

Contraceptive effectiveness is usually not measured by number of times sex happened, it's measured by comparing how many pregnancies happen in comparison with the normally expected in a given time period.

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