Researchers at Weill Cornell Medicine have devised a drug that temporarily renders sperm immobile, thereby preventing pregnancy. The catch? So far, they've only done it in mice. But if they can translate the finding into a treatment for humans - and that's still a distant goal - it could mean men could pop a pill and enjoy a few carefree hours, maybe even a weekend, during which they are safeguarded from creating unwanted pregnancies.
Think of it as Viagra, but for birth control.