Discovery Of Sperm “Booster Switch” Could Lead To New Unisex Contraceptive

Health and Medicine





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Nailed it! A sperm power kicks itself towards the egg. Kateryna Kon/Shutterstock

Sperm cells, as it turns out, can become “hyperactive.” A new study published in the journal Science has revealed that a particular enzyme on their tails responds to the female sex hormone progesterone, activating a “power kick” that boosts their swimming speed.