The burden of finding the right birth control method typically falls to the person who can get pregnant. Some 90 percent of females have taken a contraceptive at some point in their lives, according to the Kaiser Family Foundation.

Currently, there are just two birth control options for people who produce sperm: a vasectomy or condoms. That could change soon. Researchers at Weill Cornell Medical College discovered that a drug used to treat eye disease temporarily stopped sperm production in mice – hours later, fertility was restored.

The researchers think they've taken a step toward developing a potential non-hormonal birth control drug that can be taken in the hours before sex to stop sperm from swimming.

We discuss why it's taken so long to develop a birth control pill for sperm and how birth control for men could change reproductive politics.

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