contraception

How sperm swim: a clue for male contraception?

Though sperm are generally considered pretty wriggly little guys, before they are launched into action, so to speak, they aren’t racing around. While researchers have long known that what gets them swimming is a change in internal pH level—the more alkaline their pH, the more aggressively they swim—until now, the mechanism by which

Happy New Year! Don’t forget contraception

It’s New Year’s Eve, and for many people that means some confetti, bubbly and even a midnight kiss. But if you hope that for that kiss to turn into something more, safe sex advocates emphasize the importance of curbing your cocktail intake, and remembering contraception. Research sponsored by the sexual health non-profit group Marie

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